Your condition sounds similar to mine. I've had these bouts of rapid heartbeats, pounding, PVC's etc, mostly when I rest. No issues with vigorous exercise. I did a holter and after seeing an EP, he recommends a TEE and an ablation, but he says it may not fix all these weird heartbeats but it should fix most of them. So, I'm getting all this done... It's always better to get these things done while you are relatively healthy and in-shape as recovery is quicker...