after surgery to insert a defibrillator I developed symtoms including pain and pressure in the chest, an enormous buildup of gas that cause significant pain, swelling of joints and pain around the device. The device was placed under a muscle under my arm and continues to move more than two inches around the area causing pain. The surgery was 2 years ago and I believe the surgery and the pain and stress have inflamed my vagus nerve causing the intense digestive difficulties and assorted pains. My cardiologist has no advice and the internist who ran tests said gall bladder, stomach, and esophagus were fine. No help. I am at wit s end and am considering removal of the device as all this started with its insertionl.