I have what I call "bad heart days" when I get short of breath easily, but those don't happen very often. For the last year, I have been using a rolling walker for support while walking my dog or going to the clinic. Over time, my stamina has increased. Dr. Omman told me not to worry about the extra beats I was having. Do you check your pulse? I have periods when I am having missed/skipped beats, and I am aware of them, but can't predict when it will happen . If PVCs were dangerous for you, your cardiologist would have put you on medicine to control them or suggested an implanted defibrillator.