When and why did my body develop this reaction of fainting?

Hey dopers, I had a question that’s been on my mind lately and I’m wondering if anyone has had similar experiences or can explain why this is happening. A warning to some, this thread could become a little bloody (or TMI) as people start responding with their experiences, I think.

I wasn’t a sheltered child by any means growing up. I’ve seen the internet pictures. I’ve had some minor accidents that required trips to the hospital to patch up.
I’ve never been the girl that freaks out when seeing blood or anything. Heck, there was a thanksgiving where I had to see most of my relatives covered in my brother’s blood when he busted his skull open (that’ll teach ya for not listening to mom when she tells you to tie your shoes before going down the stairs) and even though I was rushed to another room so I didn’t have to see any more, it really didn’t bother me. If anything, I was just angry at my brother for ruining another family gathering. :rolleyes:

Anyways, the point is that I’ve seen a lot of gross things in my life. I was never grossed out to the point of vomiting, crying, etc.

Over the years though, it seems that my body is fighting my brain in that, while my brain is fine with seeing things like that, my body chooses to faint (or at least try to).

The first of three instances I can recall this happening was when I was with my mother at the veterinarian. I was holding my cat as an IV dripped into her. I was listening to my mother talk to the doctor, I hadn’t even looked at or thought about the cat’s IV, when all of a sudden the room began spinning around me. It became hard to breathe and I thought I was going to throw up. I ran outside of the building for some fresh air. It took a while for the feeling to go away, but it finally did. I had no idea what had happened and eventually forgot about it for a while.

The second time this happened was when I had to go get my blood drawn (hooray for study abroad requirements!). I last had my blood last drawn in the fourth grade (everything went fine). I was nervous going into the doctor’s office this time, not exactly thrilled to be having my blood drawn. Going into the room, I began to feel woozy and a little ill. I chalked it up to not having eaten much. I sat and had my blood drawn. Still feeling woozy, I made the smart idea of turning my head to see how the whole blood drawing process was going.
Big mistake.
Watching the vial being slowly filled made me feel exponentially sicker. My brain said “Okay, you need to look away now so you don’t feel any worse”, and I obeyed. The nurse told me she was done, and I tried to stand. Only, I couldn’t. I couldn’t see. Everything faded into a white. Everything sounded distant, or as if I had cotton in my ears. My face felt really cold. It felt like I couldn’t breathe right. There was the same panicky feeling of wanting my body to quickly return to normal.
“You don’t look so well, you’re really pale.”
I couldn’t even speak. It felt like my mind was there, just inside a shell that I couldn’t control. I have a fear of fainting and I was doing all I could not to. She had me sit until I regained my vision and I could talk again. It felt like forever. Even then, my friend who was waiting for me remarked on how horribly pale I still was.

Anyway, fast forward to a few weeks ago. While I can kind of understand why the last scenario made me almost faint, this next one just has me puzzled.

I was in my bathroom, brushing my teeth. I had braces some years ago, but my bottom two front teeth have become ever so slightly slanted since then, I’ve noticed.
I did something with my tongue, somehow managed to do just the right motion, and suddenly felt that there was something wrong. There was an immediate pressure between the teeth and I was worried that I had somehow knocked one out of place or something like that.
I look and see something between the two teeth.
A chunk of something pink. It took me two seconds to realize that I had somehow took out a chunk of my tongue and it was now wedged in my teeth.
Ew.
It was about the size of a taste bud. I could taste a little blood, but it didn’t hurt. I couldn’t even figure out where the chunk came from.
My brain was like “Oh, gross. Well, get some floss and let’s throw it out”, which I did. My body, on the other hand, decided to be more along the line of “Ohmigod that’s so gross I’m going to try to faint now”. Everything started to go the usual white, hard to hear, hard to breathe, etc. I had to fight to stay conscious again.

The question I have is, what is it that made me become a wuss over the years? Why is it that while my brain can tolerate these things, my body won’t? It feels like a fight between my brain and my body when this occurs. Is this my body’s natural reaction to something?

I guess I should add that I’m not looking for medical advice, just wondering if anyone could explain this from a scientific viewpoint, or just share their experiences and opinions.

I have something somewhat similar, and for a Psych 101 class a couple years ago, I did some light research into the phenomenon. This article was pretty interesting:

Pury, C., & Mineka, S. (1996). Covariation bias for blood-injury stimuli and aversive outcomes. Behavior Research and Therapy, 35, 35-47.

Put very simply, the article describes an experiment in which subjects were shown images of major or minor carnage (ranging from mutilated bodies and surgery to minor cuts and scrapes) intermixed with neutral images; subjects also randomly received a mild electric shock, a neutral tone, or nothing after each slide. No matter whether they had a blood injury phobia or not, the subjects consistently concluded that there was a strong correlation between images of carnage and the electric shock. This overestimation occurred both for the major and for the minor injuries. The researchers concluded that this demonstrated an innate revulsion among humans to such injuries–surprise, surprise!

Other research was more interesting (and unfortunately I’ve lost the references). My favorite one talked about the difference between blood injury phobia and other phobias. Specifically, other phobias tend to involve increased heart rate, adrenaline surges, and a flight-or-fight response; blood-injury phobia tends to involve conditions similar to going into shock (drastically lowered blood pressure, shallow breathing, etc.) This would make sense from an adaptive standpoint: if you suffer an injury that’s resulting in blood loss, you’re likelier to survive if your blood pressure drops. Those of us with the phobia just react a little too strongly. Our body is out of whack in how it perceives the injuries that require a drop in blood pressure, and they go haywire at something totally innocuous.

Of course, for me, I’ve also got the incredibly irritating propensity to freak out when I’m going to have something medical done, even something as minor as a TB test. Part of my brain is thinking, “This is totally freakin ridiculous, what the hell is wrong with me?” even while my body is writhing and moaning and generally making a fool of me in terrified anticipation of the needleprick. It’s very frustrating, and I’m trying to find a way to stop it, but so far it keeps happening.

Daniel

I’ve fainted once in my lifetime, and came close a second time. The first time was when a friend of mine talked me into joining a gym and getting some weight training in. (He had aspirations to be a pro lifter at that point in his life) Outside of the actual weightlifting, which was tough enough in itself (I was a scrawny, short little guy) there was also the food regimen, which was high in carbs and low in sugar – lots of pasta, grains, that sort of thing, but no sweet snacks. In the daytime I was working as a typesetter, and had rode my bike over to the printers to pick up some things. As I stood at the counter waiting for them, I began to feel light-headed. It progressed pretty rapidly; things started to go dark, my ears started feeling like they were stuffed with cotton balls while simultaneously ringing. I tried to fight it, balled up my fists, held myself firm against the counter with my arms, determined not to succumb to the feeling, and…

…the world slid back into focus as I realized I was staring up at two people. From the front steps. Evidently I’d totally blacked out, fallen backwards, slammed the door open with my head (there was only about three feet of clearance between the door and the counter), and landed there. I got up and assured everyone I was fine – my head had a bit of a knot forming, but it didn’t really hurt much. Obviously I didn’t feel a thing when I initially fell. I have no idea how long I was out for, either, but it couldn’t have been more than ten or twenty seconds. I quit the weight training at that point, figuring this was my body’s way of saying “Dude. Chocolate. Now.”

The second time was probably more understandable. I don’t typically get squeamish around blood unless it’s pretty bad. Well, a couple of years ago I was receiving some tools to book in for repair at the company I’d been at for a year and a half by that point. It was held closed by a plastic zip tie, and I was using a spring-loaded box cutter to try and slice through it. It was my own stupid fault, really; knife in my left (dominant) hand, slowly working to the right through the zip tie; right-hand holding on to the tool case near the top. I made it through the zip tie rather unexpectedly, and my reaction time was insufficient to halt the momentum of the knife before it went through my right-hand index finger. I felt almost nothing, but I knew what I’d done as soon I felt the hilt of the knife slam against my finger. I dropped the knife and instantly clamped down on my hand. I didn’t see the wound yet, but I knew it must be there, and it was probably bad. Holding tight, I headed to the bathroom, kicked the door shut with the heel of my foot and ran the water. Then I looked at the wound. Yep. Pretty bad. A good one-inch wide, wedge-shaped slice right through to a small point on the other side where the short blade had poked through. All things considered though I was tremendously lucky; no muscle or tendons or veins sliced, just a clean poke through the flesh. Thank God it was just a box cutter and not a fully extendable Xacto knife. That would have been a lot more dire.

Anyway, I cleaned it and wrapped it in toilet paper, told my manager about it, and he got some gauze from the emergency kit and helped me dress it. Up until then I felt fine, but for some reason while he tried to dress it I felt really faint, almost to the point of blacking out – but I managed to keep my wits about me that time.

Same here, that was my exact feeling when I got my blood drawn and the tongue incident. My brain was like “suck it up, this is nothing!” but my body just wouldn’t listen.

And thanks for the post, it was an interesting read. It’s funny that the body does that…it makes me think/makes me worry that I wouldn’t be one of those people who survive getting shot, stabbed, etc., even if there was a chance, because the sight of blood will make me too woozy before I get anywhere. It’s a scary thought.

That sounds just like me. I remember one particular incident when I was 14, one of the few incidences where I seriously hurt myself (I was the safe kid of the family). It was in the summertime and I was about to leave my grandma’s with my dad. I’m a sandal-wearing kid during the summertime. I went to open the back door, not thinking about how all of the doors were recently altered (so my grandma could open them more easily) by trimming an inch off the bottom of all the doors.
The bottom of the door was now at a perfect heighth to clip my toenail and pull it straight up.
Which it did. Tore it straight up, root and everything. :eek:
I wouldn’t wish that on anyone. Remembering it now still makes me cringe. I didn’t even have to look down to know that I screwed myself up something good. I just kind of put my other foot on top, screamed for my dad, and let the fun ensue. We got home and it was wrapped in a washcloth. I dreaded going to the hopsital so I kept saying “It doesn’t hurt so bad now! I’m sure it’ll heal!” but it was worthless. Got dragged to the hospital, had some shots and the nail pushed back in, bandaged up and sent home.

What I find odd though is that during that occurance, I had no urge to faint at all. I was totally concious the entire time and did not feel woozy or anything. Again, this was before my last 3 incidents, so it still makes me curious as to whether or not there was just a spark or point in my life where my viewpoint changed that I’m not aware of. This was definitely a lot gorier than my cat or tongue incident.

On the other hand, maybe you’d survive precisely because your body shuts down: the low blood pressure will mean it’ll take a long time for you to bleed out, and if there’s anyone else around, they’ll have longer to save you.

At least, that’s my theory :).

Daniel

nikonikosuru, it may be either a form of vertigo or low blood pressure. Have you seen a doctor?

I’ve never fainted, but “positional dizziness” linked to low blood pressure was a pain in the rear for me for many years. I now have the BP under control (caffeine and salt)… but hey, apparently I also get vertigo, yay!

Neither has anything to do with being yuckied out, but both flare up if I move suddenly. Room tries to whirl around me, I can’t guess distances correctly… but since I do not faint, get noticeably pale or otherwise look sick, people don’t believe me when I say “excuse me, I need to sit down a moment.” :rolleyes:

Aging, perhaps ? I haven’t been able to find a cite, but I recall reading that most fainting is due to a weakness in the nervous system; the parasympathetic, I think. Any sort of stress can draw blood to various parts of the body; since the brain is at the top it’s at risk of losing blood pressure more than the rest of the body, and one function of that part of the nervous system is to keep the brain properly supplied. If that system is weak, then it won’t compensate properly for blood flow elsewhere and the brain will go fuzzy or unconscious for lack of blood.

Perhaps your system was always borderline, and as you age it’s getting shaky enough for you to develop fainting spells. Or perhaps you have some other problem that’s putting enough stress on your system to put you over the edge. If it worrys you, go to a doctor; I’m not one.

Also, here’s a potentially helpful Wikipedia article on vasovagal syncope, mentioned as the most common cause of fainting. It does mention giving or watching giving blood as a trigger.

Thanks for the link! I noticed that I have a lot of the symptoms (becoming white, cold, vision and hearing is distorted, etc. It also said that it usually occurs first as a teenager, which happened to me. I hate the fact that this happens, as I’ll probably have blood tests in the future, want to donate blood, etc. But I’m glad to know the mechanics behind it now. Thanks for the info. :slight_smile:

When I did my first (and only) subcutaneous fluid treatment on my cat, the vet knocked me in the side of the arm and said “BREATHE!!” Evidently, I was so freaked out that I kind of froze up. I felt faint (and I’m not one for fainting).

The others have covered it pretty well, so I’ll just add anecdotal evidence.

I’ve always been prone to traumatic shock. I hurt myself, and I get light headed. Lie down for a few, the smoke clears, and I’m ready to go. It also has happened under extreme stress, such as being treated in an ER after the initial injury.

Well, in the past few years, I gained a lot of weight, got high blood pressure, had a gastric bypass, and lost the weight. The doctor wouldn’t adjust my BP med, despite many stories of postural hypotension (getting lightheaded after suddenly standing up). I finally stopped the med altogether and on my own. The PH situation got a lot better but didn’t go away completely.

This past summer, about 2 months after I stopped the med, I put my left hand on a wasp and the little bastard nailed me good. I went inside to find some ammonia to swab on the sting, couldn’t find it, and while I was running my hand under some cold water trying to figure out what to do next, the familiar lightheaded sensation started. ‘I better sit down’, I thought, and about 2 steps towards the living room, I went out cold and hit my head on the fridge on the way down.

I woke up to my wife and dog going berserk. I laid there about deliberately for about 5 minutes gathering my wits and rubbing my temple, got up, and I was fine. That was the first time I ever went down hard in all the years of stupid injuries.

I’m not sure what to say other than your BP is crashing in response to stimulus of some kind.

I’ve come close to dropping twice. First time was when I had an abscess (moral of the story, make sure your razors are clean!) dealt with. It was ok until the packing, which, despite my having local freezing, hurt like a mofo. I must’ve gone pale because the nurse asked if I was ok. I felt a little lightheaded but took deep breaths and fought it off. Once I was dressed and outside, though, I felt woozy and decided to sit on a bench for a while. Fortunately, it was cold out so breathing the cold air revived me.

Second time was when my mom was in hospital. She’d gotten a kidney infection which made her swell up. I guess my system didn’t like the idea of her the wrong size and I definitely had to steady myself. And I’m thinking ‘What earthly use is it to topple over in a faint if you see somebody else looking bad? If danger’s afoot, wouldn’t it be better to get the urge to flee?’ I walked down the hall, took some deep breaths, talked to folks for a bit, and then was able to return.

My husband has to lie down whenever his blood needs to be drawn. He also feels faint if he sees anyone else bleeding significantly. Once he needed to lie down on the floor when a character in a movie we were watching started to bleed spontaneously (Agnes of God–the character develops stigmata in her palms, as I recall.) He did make it through the births of both of our kids, but just barely.

Cher, I can handle blood so long as it’s not my own. Good thing, because I’m in EMT training… :eek:

I hope this is true. I try to look at the positive side of things. It would be pretty embarassing to die of something as simple as a sliced thumb or accidental jab with a kitchen knife. With my luck, nobody would be home and I’d have a sloooooooow death. :stuck_out_tongue:

Nava, I’ve never thought about it being related to low blood pressure. I’ve had it taken during my last doctor visits (one in September, the one before that in January) and they didn’t say anything about it, but I will definitely be sure to ask next time.

I will also try lying down, as many dopers have recommended. Anything to make that feeling go away quicker!

With two of the three almost fainting experiences, I noticed that crying (okay, I am a wuss) made me feel better. Not tear gushing wails, but sobs. Maybe it has something to do with breathing?

I guess I’m a little worried because I’m petrified of giving blood (although I wish I wasn’t) and if kids come into the distant future, blood work is going to be done, and the birthing thing will be an experience in itself. :eek:

Good luck with the training, VunderBob!

I get that sometimes too. I had a very minor cut on my palm when I was about thirteen that caused me to pass out. I remember being fascinated that such a small cut was bleeding so much, looked up at the TV, then tunnel vision and feeling all tingly, and—wham—I woke up on the couch with my dad looking at me like he was afraid I was going to die.

It is weird because I’m not consciously freaked out by the sight of blood, I’m pretty calm about it, actually. I also don’t get all that grossed out about gore and nastiness. I mean, I can see stuff on Rotten.com and not have a problem with it. I’ve killed and gutted animals before (subsistence farming and hunting as a kid) and when I last visited my aunt I found a dead and somewhat gnawed-on deer that some predator had killed when I took a walk down the hill.

Sometimes I can get cut quite badly, like the time I just about cut the tip of my middle finger off, and nothing happens. Other times, like that palm cut, it’s a tiny injury, nothing that even hurts worse than a sting, and I get light headed. I’ve learned to tell doctors and nurses that I might need to lie down during blood-taking.

I haven’t had an episode for a while, and it’s always a crap shoot as to when I’ll have a problem again. I don’t like it. It’s not that I feel like a wuss, it’s just that I don’t like losing control like that. Especially when, like nikonikosuru said, it feels kind of dangerous to be out of it when you’re injured.

Exactly. Sobbing or crying forces you to inhale deeply, forcing oxygen in to your blood. Between that and the mechanical aspect of breathing deeply, this forces your blood pressure up, counteracting the drop than makes you pass out.

Putting a patient on oxygen does the same thing.

I just tell them I’m a chickensh%t. If I don’t watch, I don’t have a problem.

On the other hand, other people’s blood and injuries don’t bother me at all. The only time it did, my wife had the flu and was vomiting profusely. I had a touch of it myself, and I started to sympathy puke. I left her alone in the ER (she has other health problems and we were waiting for her to be admitted) so I could keep everything down.

I am by no means squeamish, and have seen some nasty stuff without getting too affected, but there was this one time I was in a cadaver museum, and standing by the corpse of a young girl that had been eviscerated to show that her heart was on the right instead of the left, my head started swimming and I started to go over… I was with my mother and she held me up - embarrassing as I was certainly not a child and we were VIP guests of the Chinese military who were showing us round. Thankfully I didn’t hit the floor, and found an open window to breathe through and clear my head, and I happily perused the rest of the corpses with no ill effect.

It’s just one of those things that happen sometimes. My ex girlfriend is hard as nails, but one day she cut her thumb while cooking and just dropped.