Thanks for posting on HCM,
If he is presenting with any symptoms such as headache and wheezing
after he was healthy for a period, then it is indication that there is a problem that merits being checked out. The feeling of passing out or syncope
, headache, wheezing could indicate that he is having a cardiovascular diseases or a complication of another illness which affects the heart.
I feel he should see an internist as soon as he can, just to be sure that there is nothing worst than just the headache. High blood pressure
could be responsible for his symptoms.
Hope this helps