All right kiddo -
I used to do a lot of offshore sailing and these are the things that I noticed about motion sickness. That rapid onset of nausea is very typical. General health is the key - the more tired, hot/cold, wet, hungry, sick (like infected), HUNGOVER - the worse life is. Combat what you can - be well rested, well fed, and clear headed. As for food, I always had my guys eat nutritious (sp?) food in moderation - nothing heavy like burgers. Grease is great for hangovers, lousy for motion sickness. Lots of carbs probably are not a great idea either. I would probably eat a piece of fruit, like a banana. It has lots of good stuff, plus if you can't keep it down, it tastes the same coming up (I'm not kidding). The stuff you can't control (heat, cramped space), blow it off - you'll get used to it. That is part of the mind game aspect. The mind will control, to a certain extent, your body. Take a couple of deep breaths, reduce the urge to panic about the oncoming hurl, and it just might go away. Finally, tell the IP to knock it off, get your eyes on the horizon, and put your hand on the stick (even if it just involves feeling the inputs that the IP is making). Almost everyone gets a little queasy their first time flying and it usually is not the last time it happens.