Update: I had my annual cardiology check up was fine, no issues and my cardiologist offered to write a note stating that my condition is great and there is no risk of sudden incapacitation.
I did my category 3 medical this evening and everything went well except my blood pressure was high - 143/90. I was nervous and I think that's why it was so high because I normally have exemplary BP (120/80 or lower) and a very low heart rate. Hopefully this won't be a problem with Transport Canada.
Other than high BP, all other areas of the exam were terrific and my CAME is fairly optimistic I'll get approved with some requirement for an annual checkup, ECG, etc.