@lpaelevated4
I like you was always and athlete.
What was your ejection fraction?

I was just on Cleveland Clinic cardiology and was looking at athletes heart. Could this be your cause. I was dianosed with cardiomyopathy that caused LBBB and electrical issues in my heart. With a ICD/Pacemaker and some great medications my Mayo specialist put me on my EF has been stable for 10 years.

When I was on Cleveland Clinic one of the tabs was request and appointment. You can't do any better than Cleveland Clinic in Ohio or any Mayo Clinic.

You mentioned Mayo appointments. I have been a patient at Mayo Jacksonville since 2006. I did a request for second opinion back in 2006. I saw a EP who referred me to a Mayo heart failure doctor. I have been a patient of Mayo Jacksonville since.

If you are having issues with getting into Mayo Cardiology consider asking for a second opinion. Or can you get an appointment with a primary care doctor and then asked for a referral. Just trying to brainstorm so ways to consider.
Good Luck