A friend of mine posted on my "other blog" that he got seasick after a day of crabbing. In his follow-up comments, he mentioned that he was sick for 8 hours afterwards, occasionally falling down. I can't even imagine getting that sick, how much it must suck.
Time for a disclaimer here, I have gotten seasick before. On my Trans-Atlantic Crossing, every time that we had canned hamburger for a meal and rough seas the next day, oooommmmfffpph up it came.
My best puking story is being in a near-gale right off the coast of Bermuda, something or another on the staysail broke, the entire crew of 60-somethings' heads immediately turned in my direction with that look of "he's young, send him out there." Of course, it had been canned hamburger the night before and we were in the middle of gazillion foot seas. So, ooommmmmffffpph, up it came.
But it got even better because the staysail still needed fixing, I was up on the foredeck dealing with an absolute ton of water coming on deck with every wave. I got into a rhythm, puke, hold my breath, big splash of water cleans me and the deck, work really fast, puke, hold my breath, big splash of water, work really fast. This went on for about 30 minutes until I lost 10 pounds and fixed the staysail.
But, I still don't understand how it happens in the absence of canned hamburger. Without that crucial ingredient I just don't get how people get sick when they have a horizon to look at (meaning I get it if you're stuck below-decks). Please vote in the poll to the right to help illuminate how this happens to you.