I also have a similar problem, I am not good with doctors and never have been. I have always had an elevated heart rate whilst doing my medicals. On one of my ECG's my pulse rate was high, I was asked to have it checked out, which I did and all was ok. Now that's on record, no problem from there on. My BP is also a little high due to this, but now I monitor it myself at home for a few weeks prior to my medical, as a sort of history, and present this to the GP. After a couple of years it is known and taken into consideration. No problem.
All the best..