I am 64 years old and have tendinitis in my left elbow from walking with crutches for 50 years. I was born with paraplegic Cerebral Palsy and never let it stop me from doing what I wanted to do. All my doctors want me walking again. Maybe on a limited basis, but I use a wheelchair outside the house now That left elbow is really painful. I find exercise helps. I work on the point where it hurts, slowly. If I don't, my arm gets weak quickly. All the info says to stop and rest. Am I hurting myself by exercising every other day and working on the sore points along with the whole arm?