Thanks for posting your query.
When echo cardiogram is normal, there appears to be least chances of CHF.
CHF is a clinical condition in which patient has difficulty in breathing, pedal edema, abdominal distension and pain in right upper quadrant of abdomen.
With the available described symptoms, there appear to be possibility of Ischemic heart disease
or cough variant asthma
You should consult with internal medicine specialist/ cardiologist and should go for thorough check up.
You should go for stress test
, coronary angiography
You should take bronchodilators and antiplatelets for getting relief.
Dr. Mayank Bhargava