Mid up back pain under rt shoulder for many months. ct of chest clear. i do have cervical steonosis and disc ht loss at t9-10. what could cause pain?

Pain in Mid Back: Can indeed be coming directly via a nerve from the degenerated level at t9-10, however, most patients have 'peri-scapular' pain, or pain around and under the shoulderblade from cervical degeneration and facet problems in the neck. Sometimes even due to referred pain from nerve impingement in the neck. Find a good orthopaedic spine surgeon to evaluate you and find the cause. Good luck!