Question: why do I have palpitations w/exercise?only after intense exercise over long period;30-60 minutes;normalizes in 10/15 minutes w/ rest

Thank you. And you are correct in your assumptions. No chest heaviness, no pain, no shortness of breath; the only thing is when I think I feel something and take my pulse, occasionally it is skipping. Not irregularly irregular. More like beat beat beat beat ......brief skip then repeat cycle. Shortly after rest and hydration it returns to normal. Bp 120 over 70 and hr resting 60. I am not a medical Dr. but I do hold a PHD so I would appreciate a best guess from this brief written triage. I agree with you; I asked my cardiologist for a stress test and he wants to do a 30 day event monitor followed by another echo. Every ecg, jolted and echo to date has been perfect. These palpitations started about a month ago and only an hour or more into hard exercise. I’ve researched this independently and feel it’s probably adrenergic afib or adrenaline induced palpitations. I do have paroxysmal afib since 2013 but only had 3 short events until this started last month. The three were most likely caused by over indulgence so I stopped drinking a year ago and lost 30 pounds. I’ve been exercising hard for about a year and these just started last month. What do you think Dr. Normally I feel great. No afib no discomfort. Just this past month and occasionally, not every time, during exercise. I take sotalol 80 mgs twice a day and since this started my cardiologist put me on Eliquis. Sorry to go on. This format only allows 160 characters on the first question so I wanted to give you greater detail. Take care.......Rich. 64 yo male otherwise in good condition