I have had pain in muscles and nerves which persists 6 months after the end of treatment. A scan showed no sign of secondary cancer. I have tried NHS Physio exercises, private osteopath, massage, but the pain and irritation persist. Sitting is painful after about 20 minutes. I can walk ok but not stand still for any length of time without back ache. Has anyone else experienced this - I am very depressed by it all and not sure how to proceed.