<s>[INST] I have this deep muscular pain in my left shoulder chest area. I can t sleep on my left side. It hurts when I breathe deeply. Also I cant hold a cup of ice water too long on with that arm....I had simular pain in my right arm for 10 years before it went away... [/INST] hi,thanks for mentioning little history about you. you should meet a cardio or a physician if it is a left sided pain. if they give thumps up that all is fine then you should do some regular breathing exercises and also some simple strengthening exercises for hand and legs. it will help you. but if the symptoms are bothering than get checked once. there is no harm in getting checked.thank you </s>