I am 63 years now. Underwent a angioplasty 5 years back and under medicines since then and undergo periodic check up with the cardiologists. It was going well after each check up.The medicines I take are clopivas Ap-75, Avas 30, natrilix 10, minipress 5, cilacar 10 for controlling BP, cholestrol etc. Since the last one month a muscle pain is developing in my left arm ( location changes from armpit to down elbow and further below. The pain is not there or rather disappear if I lie down for sometime. Hence during sleep there is no issue. The problem is seen in day time when I am active. The pain is irritating. Why this pain and let me know what I need to do.