Hi there, Thanks for writing in I am a qualified and certified cardiologist. I read your mail with diligence. You have asked two questions. There is no reason of having heart disease
with such an impressive history of physical tolerance. There is no cause for concern. About any investigation help yes persons who do as much physical activity as you do have condition called Athletic Heart for excluding that condition or ruling that in as a cause of your non specific changes I would urge you to see a doctor who may advise a repeat echocardiography
Doppler this year (to see any change from two year old echo) and possibly a TMT (to assess how much exertion is permissible safely) to put any doubt of serious heart disease at rest. Good Luck.
Regards and Best Wishes.
Dr Anil Grover,
M.B.;B.S, M.D. (Internal Medicine) D.M.(Cardiology)