I got terrible food poisoning from shrimp a few months ago where I had similar symptoms to what I’m having now. After taking anti-biotics the symptoms went away. Then about 3 weeks ago I started noting the same problem… every time I drink or eat ANYTHING, I get horrible stomache pain, cramping etc. I got an endoscopy, an ultra sound and cat scan that all revealved nothing. I’m at the point where even just a sip of water hurts horribly. Several people have told me this sounds like a parasite? I know nothing about those. Someone else told me this could be my gall-bladder….I have no idea where to go with this. The doctors have been very little help.