PVC's started 2 years ago for me. I can tell I have gas backed up under my rib cage (both sides) pushing out. I have had so much in there it felt like I had a basketball in there . When that happens PVC's all over the place, and I'm thinking it is causing an overcrowding of the heart and sends it into a funky rhythm. And they don't stop until I take Gas-X or something similar and decompress my upper abdomen. I have wondered if I have a structual issue with my small intestestines underneath my rib cage to cause this phenomenum, maybe something is getting trapped and causes this buildup. Since the PVC's started 2 years ago I have tried many things, and the only relief I seem to get is with an anti-gas med. I have been to the ER 3 times for this, worn Holter moniters 3 times, had EKG's, Stress tests, 2 ECHO's, Abdominal US's, Cardiac workups...all showing a normal heart and abdominal organs. No, I am not stressed out, and I have little to no trouble with Acid Refux. My Mother and Brother exhibit similar upper GI symptoms, my brother with upper BO's, my mom with chest pain & arrhythmias. What is going on?