Hlo I am 21 year old male.. I have this doubt since a very long time.. When I am under stress my hr goes till 130 but no chest pains-- ecg done thrice during such episode normal But if I do very mild exercise like a brisk walk, climbed one floor of stairs my chest and left arm start hurting badly even though hr will be only 100/110... Is dere difference in the way stress and exercise act upon heart? I had tmt around 2 years back ( report attached)