It started a few months ago, I would get sick when i would eat in the morning, or eat more than one meal a day. Stopped happening for about a month, and recently just started again. When I eat, anywhere from instantly after to 20 minutes later i feel sick to my stomach. I get diarrhea some times. It doesnt matter what i eat, mean, veggies, junk food, dairy. Anything. Im a 21 year old female, I do not drink excessively or often, im not pregnant.   Any help or thoughts on what could be wrong?