I find the nausea can be held off with crystalised ginger or Canada Dry - I think the CO2 helps as well. But if it is bad - it is not much comfort if it only stops one puke.

I also found mushrooms cooked in butter can trigger migraine, and maybe sunlight and even white wine in the recipe - but lately I have controlled it (not much science here) with what I eat which whatever else - is: NO ONIONS or garlic or ........
maybe my red glasses help - I do wear them for driving (they are prescription lenses).