Hello dear, thanks for your question on HCM.
I can understand your situation and problem.
Your symptoms are more suggestive of
anxiety.
But better to rule out cardiac and pulmonary causes first.
So get done ecg to rule out cardiac cause.
Get done chest
x ray and PFT ( pulmonary function test ) to rule out pulmonary causes.
If all of the above are normal then no need to worry for major diseases.
Anxiety appears more in your case.
So better to
consult psychiatrist and get done
counselling sessions. Try to identify stressor in your life and start working on its solution.
You may need anxiolytic drugs too.
Avoid stress and tension.
Be relax and calm. Don't worry, you will be alright.