Hi!

Just a quick question should i be worried.

I have a relatively low resting heart rate, which is around 41-45 bpm. But when I sleep it stools even lower in the 30s at certain points of my sleep.

I've also noticed my HRV also gets really low sometimes at 20ms-40ms during those periods.

Of course I've measured it using an Apple watch so it might not be as accurate (only managed to check the heart rate on a medical device which is spot on, once got held up in the clinic when I had a fever because my heart rate was too 'low)

A bit of background I'm active. I do exercise on a regular basis. 20s age group. I have no issues doing steady state cardio and intense workouts.

Just wanting other opinions before I go ahead and just meet a cardiologist. Had a medical check up done twice this year with blood work, everything came out fine.

I do have states of low energy and general sleepiness but that may be because of my sleep.

Blood test, lung xray, BP, Audiometric, bmi, heart rate, unfortunately no ECG.

SE model.

Last time I checked Iirc was around 120/70. Yesterday I hit a 158 bpm max on my workout.

Numbers seem fine right?

1Irregular rhythm notification requires the latest versions of watchOS and iOS. It is not intended for use by people under the age of 22 or those who have been previously diagnosed with atrial fibrillation (AFib).

Sure

As per your max HR, 158 is low, you should push to around 190 since you are below 30 years old.

The highest I've ever gotten was 170 and that was 1-2 years ago. Used a bunch of other devices that monitor my heart rate when exercising, never went past 160

What's your HR during med check up?
45-48 Iirc. Doc just asked whether I exercised regularly or not, in which I said yes.

What was the fever that than caused low HR?
Was prescribed antibiotic, unsure of what fever. But felt like I was dying lol. Recorded around 38. Suspected dengue but blood tests said otherwise. Had prolonged symptoms. My platelets and wbc were low so the combination of the tests and heart rate probably freaked the doctor out. Insisted I was fine.

Dad used to have an angioplasty and my grandfather had a heart attack so kind of sketched out by all of this. As for the AW. I turned on the irregular heart beat, no notifications at all. The only thing it kept saying was the low heart rate notification.