Hello, thanks for using HCM.
From your description, it is possible you have a left heart failure
which has been complicated by pulmonary edema
Cardiogenic pulmonary edema presents with breathlessness ( a feeling of suffocating), chest pain
, cough with frothy sputum, palpitation
, wheezes etc. Heart failure is a common complication of a myocardial ischemia
You need to be seen by a cardiologist for a detail examination and if the diagnosis of a heart failure is confirm, you will be put on drugs such as lasilix, captopril etc as the case may be.
Best regards and hope this helps.