Hi, Jude! I once had this and my physical therapist taught me these stretches: you put your left arm out straight ahead of you at a 90 degree angle to your body. Then you take your right hand and grab four of your fingers. Now, slowly bend them backward as far as they can comfortably go. Hold it there for a count of 10. Repeat on other side. Then repeat the whole set three times. Do this at least once a day. It really works!