Tenderness in the front of the shoulder or the midpoint of the arm is often caused by rotator cuff pain. When lifting your arms you also might experience shoulder pain and stiffness. Symptoms of night pain and difficulty sleeping are also problems associated with rotator cuff pain.
Onset symptoms may be mild and patients usually do not seek treatment at an early stage. These symptoms may include: pain radiating to the side of the arm from the front of the shoulder, sudden pain when reaching, minor pain both at rest and with activity, and for athletes, shoulder pain when throwing a ball. As the problem becomes worse symptoms can increase to loss of strength and difficulty sleeping through the night.