iWatch Heart Rate Anomalies
My resting heart rate is 51 bpm.
While resting, my iWatch will occasionally report a heart rate in the low 40's although my pacemaker minimum threshold is 50! Perhaps that is an ectopic issue, but sometimes it records for periods of up to 10 minutes in the low 40's! That seems difficult to explain as an ectopic issue?
While exercising, my iWatch is fairly accurate (confirmed by chest strap, treadmill monitor) in the range from 90 to 115 bpm (my 80% exercise level) BUT occasionally it will record 210 bpm for a sustained period of 15 minutes or more! During these periods I have no confirmation of accuracy by any other means - except that I do not feel it. No shortness of breath or lightheadedness or fatigue. Possibly an asymptomatic a-fib event, but the pacemaker does not record an episode in this period. So ....an unexplained artifact. Dehydration?
Suggestions on how to resolve these anomalies?