hi thank-you for providing the brief history of you. as you mentioned you have RA you need a little understanding about what RA is all about. The pain moving from one joint to another. Also to understand that the pain is due to inflammation and this can be controlled by anti-inflammatory medication which you will be already taking. Also performing exercises plays a big role for the muscle strength and the joint mobility. As RA moves from joint to joint, it may at times teoube the respiratory cage due to pain and reduce the ventilation capacity. Performing regular exercises will help fight the RA. 1. breathing exercises 2. strength conditioning 3. stretching 4. body conditioning 5. Cardiorespiratory endurance 6. meditation. all together when performed in an organized manner will lead to the mobility sustainable for a longer duration. usually people are not able to perform exercises as they cannot fight pain and it ll lead them to deformity of joints due to tightness of muscles. Hence to conclude, you should perform regular exercises and for which you can take a knowledge from a physical therapist. once you have learn well the exercises you can perform the same at home. with the grace of God I wish you a speedy recovery regards Jay Indravadan Patel