In past years I’ve noticed that if I spend any time on a boat, dry land tends to wave for 10 minutes or so afterwords. IOW it feels like the land is rocking back and forth. A decade ago I sailed asmall craft on open ocean from dawn to dusk. The land rocked for hours afterwords.
I just went on my first cruise, for 5 days. It ended on Saturday, and I can still feel the waves.
What causes that? Is it an inner ear thing? Muscle memory?
First we have to figure out what causes sea sickness. But at least we have a name for what you describe.
( I remember once after a long cruise having, once ashore, to grab a doorway to keep from falling.)
It takes me about 4 days to recover my equilibrium after being on the water for a week. I find a half-dose of Bonine sometimes helps (read the warnings, as it can make you drowsy).
And, tdn, where did you cruise and on which line?
Thank Og for that. But experts still don’t know what causes it?
My trip, BTW, was Jacksonville to Key West to Nassau and back, starting on Christmas day. Carnival Celebration.
The food sucked.
From one of the "sites for more information:
"While the etiology of MdDS is not known, the predominant opinion is that MdDS is caused by inappropriate vestibular adaptation upon cessation of a motion experience "
So, “an inner ear thing.”
Another thought:
The mind will show/give you what you what it really expects to be there.
I was getting unusual aircraft attitude recovery training while working on my instrument ticket and the instructor was really working me over. One time, I was really having to struggle to believe what the instruments were telling me that I was hunched over and leaning to the side and sweating bullets making myself do what the instruments said. I really did not believe them, I just did it.
He noticed the real struggle I was having and said to pull off my instrument hood which is used to keep the trainee from seeing outside the airplane. The instruments said I had the airplane straight and level but when I opened my eyes, the left wing was way down as I knew it had to be. “Blink”, the horizon rotated to the right and became level as I watched. Only took a second but I could see it moving. Of course the aircraft did not really move but my mind was so convinced that it showed me what it thought was actually there.
I too have had a problem going from the boat to the land after some days at sea. it is weird to have the land rocking when I can see it is not.
IMO, it has more to do with the mind than the ear because of the time element. Vertigo, which I am very familiar with, comes from the inner ear hairs being held over in their fluid for a few moments until your balance goes wonky and is easily stopped when you get a visual reference and stop moving so the forces that were affecting those hairs stops doing so. The long time it takes for the land to stop rocking even though your eyes are open and you are getting the correct sensory inputs and the ear hairs have already been realigned for some time, I feel, it is more about what the mind expects to be happening, and that it is more about precedent than inputs from the inner ear.
YMMV
That’s always the way I’ve thought about it. When you’re on a ship, the deck shifts to right, so you automatically shift to the left to compensate. When you get back to land it takes a while for your brain to get back to normal.
Human beings aren’t statues. We’re always moving a little bit. What I’m thinking is that your brain interprets that very slight swaying as an oncoming wave and you lean into it in anticipation. Thus, the ground seems to sway.
Doesn’t explain why “landsickness” can happen whe you’re lying down with your eyes closed, though, which is my usual experience. I vote for both/and.
I’ve done a fair bit of sailing, and will agree with what others have experienced. However, I don’t get seasick, nad don’t get ‘landsick’ either. There’s an exception though, there have been times when I felt slightly quesy, when going below deck when it was kinda choppy. I noticed that when I couldn’t fix my eyes on the horizon, here was a slight discomfort.
I don’t walk around when I’m sailing, I’m basically sitting still on a 30’ tub, leaning 30 degrees that gets bumped around a lot, so I don’t think it’s the walking and compensating that does it, since hte ground is going back and forth for me too.
What does this mean. I’m trying to picture what you’re saying but I can’t make sense of it.