Apple Watch - high heart rate spikes & low oxygen saturation in the night?

[Sarahjsxx]

Hello,
So I got an Apple Watch about a month ago mostly for workouts & counting steps. I have some health related anxieties which I think the watch is making worse
In the last 2 weeks on 3 different days my Apple Watch read my heart rate to spike at around 170 randomly whilst I was sitting down. Then in the night for the last 3 nights it's reading my oxygen saturation at 90% at some points which I understand is low
I do get heart palpitations sometimes so it's making me panic how accurate is this Apple Watch for these kind of things? Can they just be dodgy readings?

yeah, sounds like that watch is bad for you.
After recovering from an eating disorder, I couldn't have scales (for weighing people) in my house for > 20 years.

I think this topic is like toddlers with runny bottoms. If the top half of the child is happy ,doing normal things, then ignore the bottom half.

If the only specific thing you can point to that doesn't seem right is the watch numbers (which is not actually a medical monitoring device), then assume the watch is wrong & sell it !!

Can’t advise re: the heart rate but it is normal for your sats to drop a bit in your sleep

I wouldn’t worry too much about your sleep but I will tell you this:

just before Xmas DH started to feel run down and generally poorly. He carried on working etc but one Saturday morning, just as we had stopped work for Xmas, he had repeated warning about his heart rate on his watch. I took him to A&E who were slightly dismissive but hooked him up to a heart rate monitor. As soon as the reading came out he was rushed straight into resus where they filled him full of drugs to stop him having a serious heart problem.
If his watch hadn’t flashed up a warning then we wouldn’t have known it was so serious.
Since then he’s been fine but he has still had the occasional spike, most recently when we were waiting to get on a plane. I think that was just a combination of the lack of air and stress.

I get palpitations and have been checked over and apparently I’m fine. It is a thing that happens as you get to the menopause. Could it be that?