I'm sorry to hear that. I had my gall bladder
removed and also was in SEVERE pain
afterwards - turns out I was leaking bile into my abdomen, which is a risk of the surgery. That might be what's wrong with you. If your doctors haven't already figured it out (it took mine a while...) tell them and see if they can put a stint in the tube between your liver
and your stomach.
Also be sure to eat every two or three hours. This will put something in your stomach to absorb the bile that's no longer being caught by your gall bladder. Not eating causes some bad pains too.
Hope you're feeling better!