[ woke up this morning withpain in my left arm mostly front shoulder. it was bearable, however earlier the pain got rather sever and has extended to my shoulder blade , lower neck towards front and all the way down my arm to elbow. I cannot lift my am, extend it outwards barely move it w/o sever pain it is a very tight pain underarm towards chest , some numbness , shortness of breath and anxiety. feels like my whole left shoulder/blade is pushed in towards front. could this possibly be a small heart attack? although last night I did buff out a chair but not for long period of time. what do you think? NEVER MIND DIDNT RELIAZE I HAS TO PAY SORRYY