Angel... That has been happening to me too. With me, it doesn't necessarily have to be a big meal, it hits me at random times (even after a small snack) but right after I eat, my stomach starts to hurt really bad. Sometimes using the bathroom helps (if I can even go) other times the stomach pain continues whether I'm able to use the bathroom or not. It's weird gastrointestinal distress that lands me in bed for half hour to an hour and then goes away. I can't quite pinpoint what's causing it. Not sure if it's diary, meats or what but I plan on asking the Dr about it next week.
For the ladies with cramps ... Where do you feel the cramps? Is it just on one side? (tubes?ovaries?) Are the cramps below (pelvic?) or above the belly button? (stomach? GI tract?) A certain amount of cramping is normal, but my Dr seems concerned mostly with one sided pain or severe pelvic pain with or without bleeding. If the pain is persistent and stops you from doing daily normal functions, I'd have it checked out.