If you are talking about a High Heart Rate notification then you should indeed not receive one at 111bpm
I would Force restart your watch i.e. press and hold both the side button and Digital Crown for at least 10 seconds, then release both buttons when you see the Apple logo.
Then while the Watch is restarting Force Restart the paired iPhone
Force restart iPhone – Apple Support (UK)
If you get another notification please take a screenshot of it. Make sure Screenshot is enabled in iPhone, Watch app, My Watch tab, General.
If no better then Unpair the watch and then pair it again.
Unpair and erase your Apple Watch – Apple Support (UK)
Set up your Apple Watch – Apple Support (UK)
After that reach out to Apple Support directly. You should be able to reach them here
Click here > https://support.apple.com/contact
This is a typical screenshot of a heart rate notification
