Valerie
If a heart condition has been ruled out, have they checked for additional stones? 4years after I had my gallbladder out, I thought I was having a heart attack. I had sudden onset of substernal chest pain with severe sweating. I felt nauseas, too.I was in the middle of supper when this happened. After three consecutive trips to the E.R., the attending diagnosed me with gallstones lodged high in one of the ducts.Is it possible you have a stone or stones lodged in a duct? Once the stones were removed (via E.R.C.T.) I never had a problem again. Good luck!