26, 5'10, 179 lbs, Exercise x5 a week, 50 mins cardio, 25 mins weights. I have MVP with slight MR. Off and on PACs up until July 3rd, now I get them once every 2-3 minutes for 16 days now. Exercise and at rest. No caffeine, booze, tobacco, drugs... 8 hrs of sleep a night. Resting heart rate of 59. Why? When will they go back to being an occasional bother and not a persistent pain in the ass.