@383peeler When I started with PVCs and PACs magnesium helped, some, and low dose beta blocker (atenolol) helped, more. Doctors were no help at all but I have to say they were right because I'm still here 10++ years later.
Eventually I stumbled on just normalizing my diet to cover a couple of nutrients I seemed low on and my symptoms were reduced dramatically. Or else it was coincidence. Been coming back a little just recently.
I appreciate hearing your story (and others), to know how common this may really be.
Of course various sorts of stress or activity can aggravate - once I started with these assorted arrhythmias I pretty much cut out anything involving high levels of exertion, I've even declined a stress-echo (and that was twenty years ago now!). However I do still stay frequently active at lower exertion levels and even find that often helps, at modest levels a different clock seems to take over heartbeat rhythms.
In past times the arrhythmias were such that I cut these short, but I haven't had that occur in 5-6 years now.

One more thing I'd like to try (do) is lose twenty pounds, see if that helps, I assume it would!