Apple Nealth and beta blockers
My Apple Health cardio fitness numbers fell off a cliff when I clicked on the beta blockers button. My cardiac rehab specialist said Apple told them it's a known bug. They say they're working on it.
Your specialist seems to have been in contact with Apple Support but I suggest you contact Apple Support directly yourself. Depending on your region, you may be able to reach them here
Click here > Contact - Official Apple Support
or phone numbers
Click here > Contact Apple for support and service - Apple Support
For your own health and safety further discussion of serious medical issues is inadvisable here .