Welcome to HCM,
After going through your history, you have dry cough
,and treated case of atrial fibrillation
Your blood pressure medicines you have not mentioned if they belong to ACE inhibitor
or Beta Blocker
group can cause cough.
Dry cough is possible due to infection in chest and drug side effects, any pathology growing in lung so get examined by Physician and test like X ray
chest , pulmonary function tests. Echocardiography
must be done to know cause.Amiodarone
is the drug which can cause lung fibrosis
so it must be evaluated by x ray chest.
Hope this helps.
Dr.Akhilesh Dubey M.D.