My female friend, age 54, has been suffering for several months from intermittently sharp, dull, burning, aching pain in her left arm, shoulder, and left side of torso. She has had only a few xrays of the area by a walk-in clinic doctor and was told that she had a pinched nerve or sprained muscle and was given scripts for flexerall, and valium which gave her minimal and short-lived relief. At times she experiences screaming pain which keeps her from sleeping anymore than an hour at a time. What should she do?