Sensitive Stomach?

Does anybody else have a really sensitive stomach? All I ate today was a tamale , a bagel 2 slices of pineapple pizza, and a bag of mini snack sized hot cheetos. It's 2:30 am now and I was just on the toilet for ages after waking up with my stomach feeling like it was trying to escape my body. It seems like the pizza and the hot cheetos were too much for my stomach to handle. =(