This frustrates me as well. It seems as though I'm sensitive to EVERYTHING!!
And you always assume, okay I just ate this and ran to the bathroom immediately after, it must be what disagreed with me. But then people say, no it can't effect you that quickly, it was probably something you ate even earlier. Well what the heck? How are you supposed to know which it is? I have a hard time believing that what I was eating right before feeling sick has nothing to do with it.
When you see what you ate in the toilet, then you know. For me it can take only two hours.
Joy - 47 yrs and counting
Diagnosed w/ UC Dec 06 (also have IBS)
Currently in remission
Lexapro (for stress)
Vitamins (a whole bunch of them)
Anti-inflammatory foods: turmeric, seaweed, garlic...
Avoid: anything with high-fructose corn syrup, foods high in fructose, artificial sweeteners