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The limited information provided is not sufficient enough to arrive at an appropriate conclusion and further suggestion... / You have not stated your personal habits, family history, or co-morbidities, even age or gender...which could influence the diagnosis and outcome...
Your symptoms do not suggest Coronary Artery
Disease (CAD) – pain from the heart is oppressing, in central chest (and left), worse on effort, relieved by rest, may radiate to shoulders and arms, associated with sweating and so on.
You need examination and investigation...
Wishing speedy recovery