Hello, I am Dr Mody and I would be addressing your concern.
It's prudent to find the underlying cause of breathlessness.
One is any problem with the valve, whether it's working all fine or not.
A 2 d echo will give us adequate information about bother valve function.
Secondly a couple existing coronary
artery disease should be ruled out. So a
stress treadmill test should be .
Yes OsA can cause breathlessness, but should have been resolved by now by using cpap machine.
Particularly if you feel breathless or tired with exertion, heart should be ruled out.
Remaining systemic cause like your low
hemoglobin,
thyroid, lungs should be looked at as possible cause and treated sos