Arm pain can have many causes, but left arm pain particularly can sometimes be a sign of a serious problem with your heart — especially if it's accompanied by chest pain or tightness.
pain radiating to the left arm or jaw, or fever “Pain or discomfort in or around the chest that is unfamiliar to you and lasts more than 10 to 15 minutes should be checked out immediately in an ...
Unfortunately, amputees often experience excruciating phantom pain in their missing body parts ... An accomplished amateur athlete, John had lost his left arm just below the elbow three years ...