Im a 33 year old mom of 3 boys with a healthy lifestyle, no caffeine, no supplements, high protein diet, 5.5 inc tall, 125 lbs. I thought I was having PVCs or PACs but a recent 24 hr hotter confirmed nothing but 3 PACs at times that were not even the times i felt them. Needless to say, I'm so confused and worried. BTW what i feel its exactly what everyone describes as PAC and PAC, I place my hand on my chest and when i get the flutter feeling and that weird gas like feeling in my throat I feel my heart pauses and the next beat is stronger. Is there any chance the doctor or who ever read the holder results missed the arrhythmias, or whatever else can it be. I have had these ectopic like feelings for 13 years, it used to happen only 2 or 3 per week sometimes i would go months without feeling one. Now since January i have been feeling them while working out, especially when i finish a set of reps (weight lifting, squads 70-90 pounds) it happens during recovery, then when my heart slows down they go away. Now, for the last few weeks I don't usually feel them unless I'm working out. So worried. I really enjoy working out but now it has become a nightmare. BTW I have had echo, stress test, holter and ekgs done and the only finding is mild Mitral Valve Prolapse and those 3 PACs i mentioned showed on the holder. I do notice when I do exercises laying down I don't feel them as much. Please help. Should i continue to exercise when i experience these weird extra beats or delayed beats, i don't even know what to call them? Is there is possibility that when the heart rate is too high the hotter does not pick up on PAC's or PVC's?