I have pain in left arm. its not a constant pain. However, I feel it near the shoulder (outside part). exactly where the arm starts. that continues sometimes till the hand. closing fist causes pains in the finger joints.

I was informed and also read that this could be a symptom of a heart attack. So i got myself examined by a heart specialist. I underwent, ecg, 2d echo, doppler and tmt. All were normal. Although, the blood pressure was reportedly high and i was even kept of medication for couple of weeks.

I am again feeling this pain in left arm, not that severe though. Is this heart related. ?
I am overweight, cholestrol was on higher side. I sometimes feel, i have light pain on left side of chest. Not sure if that is phycological or actual. Fitness levels not as good.
Age 32.