I hurt my left shoulder, the pain travels down the entire arm, can not sleep on that side, I get cramps. Which can be?

shoulder joint is the most mobile of all existing in the body and therefore the more likely to have problems. Pain in the shoulder area can be local or joint problem be related caused a problem elsewhere. transmitted pain elsewhere may be due to injury of the cervical vertebrae, cardiac lesions, cholecystitis or diseases affecting the mediastinum or the diaphragm.
local shoulder conditions have symptoms that are closely related to the movement of the shoulder and arm. the most common shoulder pathology is traumatic and inflammatory, one of the most common tendonitis. You should see your doctor for evaluation and treatment.