Hello, I have a neck pain and left shoulder pain upto arms, and fingers, one day its fine and one day its more pain, when ever I have a pain I am scared of having heart attack, for clarity I took stress tmt, 2 2d echo test, and 4 ecg and all are normal, still I am scared having pain on left arm and neck and jaw. Please suggest me what shall I do? Still I have muscle pain and left side neck and jaws pain.