Welcome to HCM,
After going through your history,you have non obstructive hypertrophic cardiomyopathy
, and you are Hypertensive as well first we should be sure it is not secondary to Hypertension
There are many causes of Shortness of breath
, as your cardiac parameters are normal,other causes should be investigated.
If you are over weight/Obesity.
Pulmonary function test for any obstructive or restrictive respiratory disease
Any role of Beta blocker ( Metaprolol ) as side effect
Is there Pulmonary Hypertension present.
If there is any thing present it needs to be diagnosed first and treated accordingly.