Dear Frogga~
I think one of the worst thngs you can have is a panic attack, it stops you thinking about anything but having a heart attack as it feels just like you imagine one might feel, makes your breathing and heart rate change, and often you can't even speak.
So I'm sorry you had them years ago, and I suspect if you were like me they would be caused by anxiety of one sort or another (no, I'm no doctor. just have my own experiences ) They makes me think you might have an anxiety condition too though that is just a guess.
If it is any consolation I too have been to ER thinking my heart was having an attack due to pain and dizziness, had the full run of tests, all good, It was anxiety.
I see you have new equipment to monitor your bodies, smartwatches. Did you have anything like that before?
If not you would be unaware of the range your heart rate will go though, for all sorts of reasons, -even mood or a single thought or temperature or ... - not just exercise . A wide range. Without a constant reliable monitor you would have no idea what was normal and good for you or more importantly when it changes quite naturally..
Even assuming the device was in good order and was making a firm contact wiht your body you are really non the wiser.
You have been checked out out, and although hard to beleive, are OK. If you have any doubts then, as I did, get a second opinion, mine came out the same. So I accepted it was a result of my mental condition.
I'll digress, we raised orphaned baby wallabies, in bags with a towel, hot water bottle and clock inside. Simulated conditions inside mum. In real life that clock would have in no way matched her heartbeat, but was a comfort.
May I suggest you do not use the heart rate function, and also try to go more like you did before you got it. You felt just fine then, healthy eating and 3 workouts a week. You were pleased, I doubt the purchase of a gizmo has changed your body, only pointed out that heart rate varies naturally, you are still good.
If the fear of having a heart attack is something you cannot overcome straight out, may I suggest you dial your exercise right back and slowly build back up, maybe visiting your doctor for a quick checkup to confirm all is well, then you get half way and again when right back to you previos form.
It may be catering to anxiety, but may help you put your worries to rest.
What do you think?
Croix
