Some times ya dont know if they are in fact PVCs. PVCs are often accompanied by PACs and other arrhythmias. One of your big dangers is small blood clots thrown off during the PACs and some PVCs. Either way I think you need to find a Cardiologist who rides a bicycle and will take an interest in your particular case. Note that I said CARDIOLOGIST. Either way just remember...
They may not be PVCs...
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)