For months I have been experiencing sharp chest pains and a sensation of my heart skipping, while exercising. I went to see a heart doctor and they did a stress test and a Coronary CT scan. During my stress test I had two chest pains and the tech said it was during a PVC. However my over all results were good and my CT scan showed 0% of calcium buildup. My PVCs while exertion are getting more painful and happen multiple times and now I experience lightheaded, shortness of breathe and chest tightness afterwards with weakness . Its to the point I am afraid to exercise. This even happens while I am weightlifting and with intercourse. I am healthy otherwise , no HBP, not a diabetic, good cholesterol.. i'm very frustrated and cant get any help for this. It is altering my lifestyle. can any one offer advice on what needs to be done?