It is called Myokymia.
I get the eye-twitch when I’m super tired or for several days after a nasty hangover.
My left eye started twitching last year when I passed through a rather stressful situation; my eyelid twitched many times a day, but after a while it started to stay calm for longer periods. Now I only get it very rarely, and usually when stressed about something.
So… have you been through difficult situations lately?
This happens to me a lot, too. Usually for weeks on end. It is normally just the top left eyelid, but sometimes the right one likes to join in as well. I hate it. I don’t know why, but it is the worst in the spring. Possibly stress from finals or whatnot. I heard potassium was supposed to help, but after eating mass quantities of bananas and many trips to the bathroom, the eyelid still twitched. It’s a tough opponent. I take vitamins, but haven’t tried vitamin B alone. Next time it happens for an extended period of time, I will give it a try.
Been there about 7 months ago.
Apparently, it may be caused by stress. You been stressed out lately?
Tripler
Just a thought. I think mine was stress related.
Bob55: It is called Myokymia. [with this as reference] Myokymia: Background, Pathophysiology, Epidemiology
Mmmm, don’t think that’s the sort of twitch I’ve had, and the twitch that it seems others are reporting, but one would need to be a doctor [or have a good medical dictionary] to understand the cite. 
eg: Myokymia of the facial muscles is believed to originate from the facial nucleus or from some contribution by a supranucleus process; however, the presence of myokymia in polyradiculopathy indicates the possibility of a more distal generator.
This happens to me too, although not just in my eyelid. I get it sometimes in my thumb flexor and my upper arm(s). I’ve never noticed a correlation with stress; it just seems to happen randomly ever now and then.
Yeah, I get it in my upper arm and also sometimes in my thigh as well as my eye. It’s random for me as well Trigonal, lasts for a few minutes over a few hours or days, then disappears spontaneously.
That sounds more like serious alcohol withdrawal/detox. You must have some wicked hangovers.
I also get the twitch, and as others have said, mine is related to lack of sleep, stress, or too much caffeine. Or more commonly, I can’t sleep because I am a little stressed (I have a hard time falling asleep at the best of times) then because I am tired I drink a lot of coffee and whammo all three triggers at once.
My wife told me this is what you are experiencing, and she is an Optometrist so I just do what she says 
My doctor told me that my eye twitch was probably from stress. I think he was right. When my stress went away my eye got better.
I had the same thing some years back. If I recall correctly, the doc told me that it was due to an electrolytic imbalance. Proper food/drink intake fixed it in a matter of days.
Are you currently employing anyone nameed Inspector Clouseau?
I’ve had this happen from time-to-time, strangely enough, caused by seasonal alergies.
odd i had the same thing almost. i got twitches in my eyelid, upper arm and my index finger.
I dont know what caused mine. i think (emphasis on think) that once i started drinking alot of milk regularly because i was changing my diet a few months ago (milk is high in potassium & calcium) that it went away. but i could just be remembering wrong.
My right eye lid twitches when I get stressed, it usualy happens for about 15-20 minutes at a time for a week or so, them goes away. It also seems that fluorescent lights also trigger it, ever since they put in natural lights in at work, the twitching has stopped