Go see ur specailist and no it is not your familiy GP. I think
the place is call the National Heart Centre (correct?).
I kena also once, went for my BMT recourse FFI, the Medic took my
Blood pressure 3 times and gave me a weird look and said "Eh...your
blood pressure damn high leh". I was like 
Later the MO gave that "Bo chup" attitude and cleared my FFI
without even mentioning about my blood pressure. Before I had a
chance to talk to him, he ask me to leave the room. wtf?!!! I have
no qualms about BMT but I was like
about my high blood pressure as I don't have it
previously.
So later when I book out and went to my GP and ask. He was shocked,
he put me on medication immediatly and wrote a stern letter warning
the camp MO and specifically ask him to be refer me to the Medical
board. I was down graded subsequently.
So if you have a real condition make a big fuss out of it. What if
ppl think you chow keng, it is your life we are talking here.