Gall Bladder Pain after its removed!?

I am a 37 year old female & had my Gall Bladder removed 15 years ago. For the last 4 years or so i have suffered the exact same pain as i did when i had an attack with gallstones.These attacks usually happen after having a few alcoholic drinks or if i have something fatty but last night it was pineapple that did it. My stomach swells up, the pain is extreme in between my breasts (i guess its my stomach) i sometimes vommit then am left feeling like i have been run over by a truck and am so tired. I have been for an ultrasound and it found everything to be normal, i then had a scope put down to look into my stomach etc for an ulcer only to find nothing!???? Help?