Hi, I recently slipped on the ice and fell on my back. i have a sharp pain in both the left side of my chest and the left side of my upper back (shoulder area). it hurts more when i breath or move in certain positions. i cannot sleep on my left side, and trying to move in bed or get in/out of bed is very painful. does this sound more like a muscle tear or a break?
Considering your symptoms, and comparing it with the patients coming with such symptoms, it is certain that the disease is related to shoulder. Most of the people are afraid of it as a heart condition, but you have suspected it on the right track. It might be a rotator cuff tendinitis or an impingement syn Chat Doctor.  It can heal with help of NSAIDs and specific exercises, but sometimes a subacromial injection is necessary to relieve the symptoms.