In 2003 I had an ICD placed b/c of family history and a very long QT interval. I have had it since then and it has not recorded any episode or delivered any appropriate therapy. When it was placed, it perforated my heart, and had to be replaced 2 days later. In 2005, the battery was recalled, and it was replaced again. A month ago, it delivered an inappropriate shock b/c the lead is fractured somewhere. It is now turned off. I was placed on a beta-blocker. Three weeks into the meds, I began having chest tightness and shortness of breath. I went to my cardiologist, and the ecg was normal. He suggested ibuprofen for swelling in case I had inflamed chest wall that was causing the symptoms. Two days later, the tightness was still there so I saw my FP. He took a chest x-ray, which showed nothing. He sent me to a pulmonologist who did a CT scan. This came back negative for a blood clot, and she could not identify any problems from it. She prescribed Nexium for acid reflux, in case that was causing the symptoms. On Friday, with flu symptoms, I went to an urgent care center and had a flu test-negative. I can get some relief from the tightness/pressure if I lay face-down on the floor. Otherwise, it is constant. I am not overweight; I have never smoked; I am 34 and am not diabetic. The long QT is the only issue I have, and it's never presented itself-other than on the EKG and holter monitor. My questions is, what do I do for this tightness in my chest? I cannot continue to live with it, but no one seems to be able to help. Could the beta-blocker have triggered something in my heart? Could the shock have left some lasting effect? Any ideas????