Thanks for your question on HCM. In your case we need to rule out both cardiac and pulmonary causes, as you are having both diseases in past, asthma and heart attacks. In my opinion it seems cardiac more as you are having AF, Ankle edema and 2-3 days history. All favours congestive cardiac failure. So better to get done ECG and 2D Echo to evaluate heart function. You should also get done chest x ray and PFT (Pulmonary Function Test) to evaluate asthma. So go to emergency room as soon as possible and start the treatment.