When I eat a normal sized meal (ex. small piece of meat and some veggies) I get extreme pain in my stomach. It feels like my stomach is stretching too far like I ate too much, but more intense and kind of empty. It feels like that for about an hour and then the pain shifts to my pelvic area. This pain is more like a cramp pain. It lasts until I can poop. It doesn't happen often but when it does its terrible. It doesn't happen when I snack or when I eat certain things. I've been to one Doctor who said it was ulcers. The medicine never worked and she was kind of dumb and mean so I never went back. I also got a galbladder ultrasound and it showed nothing. I'm a 15 year old female 160 lbs.