welcome to HCM.
if you have sinusitis
and cough, post nasal drip
(discharge behind your throat) or developing lung infection
can cause all this.
if you also have BP, are (how?)old, we need to rule out heart failure
also espp. if you are breathless at night when lying down.
not to get scared, as both are treatable.
but tell me,
do you run fever?
swelling over legs?
any 2 D echo done for the heart?
any ENT checks?
I would advise to get evaluated in detail by an ENT doc first and appropriate treatment.
pl. keep me posted.