Sorry if this is too much prying into your health, but what was the personal/medical verdict on whether to continue the running? You say that the symptoms disappear after a while without exercise, but if it’s benign will you keep it up?
I'm not into any competitions or races. I run for health purposes only, so I'm okay losing some fitness. If the symptoms disappear, I'll certainly ramp up again. If they don't, I'll play it by ear :)
My understanding is that 35-50% of endurance athletes have what I have (including symptoms), and they continue to train without any harmful effects.
In my case, the PVC disappears during exercise and comes back when I take a rest after exercising. I just wonder if you had any comparisons between rest vs. elevated heart rate scenarios. Now I'm super curious how elevated heart rate might change the clock rates for those nodes.
From what I've read, when we're exercising (or sick or stressed) the heart rate gets overridden by the SNS (part of the autonomic nervous system). The SA node can only maintain resting heart rate, and once there's extra demands from the body, the SNS takes over (controlled by the brain, but involuntary).
It seems to be a good sign that PVCs disappear during exercise based on the studies I found.