I have been diagnosed with post thoracotomy pain syndrome and intercostal neuralgia. I am constantly in pain, my therapist advised me to try restorative yoga. It is gentle form of exercise that stretches dyfunctional or damaged muscles. It prioritizes on stillness, calmness and deep breathing. It does seem like you are doing anything, more like relaxing but believe you are actually doing something. The yoga is supported by props of things you have in house like pillows and cushions and best a few poses when starting. Want to share as it has done me world of good and can help people out there.