Hi, I have a left breast sharp pain, it also feels like muscle tightness, it goes under my armpit, down my arm underneath
and on top, my neck
and jaw, it has now travelled to my back
and shoulder bone. This is really frightening me. I had the same problem 3 years ago and i was checked for heart, PE, Angina etc but everything was fine. They let me out of hospital and i could not even walk the pain was that bad.