So, I'm a very active young male, 24yo, workout intensely 1-2 hrs 4-5 days a week. I am sexually aroused by the sensation of palpitations, so I induce arrhythmias in my heart via breath manipulation and pressure applied to my chest. I do this nearly every day and have for about ten years.
A handheld ekg with limb leads revealed that mostly I induce PVCs and PACs, sometimes in bigeminy; but occasionally I'll get more dangerous rhythms, such as short bursts of polymorphic vtach. But I do not get arrhythmia without forcing it. In fact my heart is quite healthy, during training today I maintained a heart rate of 202 and recovered to 126 within a minute.
What is this doing to my heart? It occasionally races or flutters now, but still pretty infrequently.