beside oneself. In a state of extreme agitation or excitement, as in She was beside herself when she found she'd lost her ring, or Peter was beside himself with joyâhe'd won the poetry award.
Symptoms & Signs. Pain in the arm can result from a number of factors. Abnormalities or injury of the skin, nerves, bones, joints, blood vessels, and soft tissues of the arm can all result in pain. Arm pain, depending on the location and cause, may be accompanied by numbness, redness, swelling, tenderness, or stiffness of the joints.
Thoracic outlet syndrome can cause right arm pain. The National Institute of Neurological Disorders and Stroke or NINDS--a division of the National Institutes of Health--states that thoracic outlet syndrome is a general term that describes several related conditions that cause pain in the arm, shoulder and neck.