I don't ever get motion sickness, so never because of that, and I generally don't go to DL if I think I may have stomach flu, NOR have I ever gotten food poisoning from anything in the park.
So, nope, never tossed my cookies. Or my churro. Or my Monte Cristo. Or my Golden Horseshoe chili.
I lost my lunch at Six Flags Magic Mountain. While riding Batman, when the ride was doing a corkscrew. I'm not kidding either. It was nasty. All over my 2 friends and the people behind me. I had never been on a coaster before (besides Space Mountain). I picked the wrong ride to be my first. My friends hated me because my mom dropped us off at the park and we had another mom coming to get us when the park closed. It was the first ride of the day. We smelled all day long. I felt so bad.