If you can get somebody to go to Whole Foods for you, Maine Root Ginger Brew is mindways' and my go-to nausea beverage. It's got a SOLID ginger kick to it, so we drink it slowly, but it's worked every time both of us have had stomach-garbage of late.

Sorry to hear about the contraindicated bananas - and as you say, yeah, that WILL make Pennsic complicated, as I believe that also knocks gatorade off the list.

You might try throwing three or four ginger tea bags into a jug of water and just letting them steep overnight so you'll have it in the morning.

Plain white rice is another one of the things that mom always gave me when I had an upset stomach - you might try cucumber sushi, though I'd be careful of the nori, and they do add sugar and vinegar to sushi rice. If it were me, I'd avoid the fish or pickled veg for now.

I hope your stomach calms down soon!