What causes likeclock work up back pain under rt shoulder blade? been hurting for mths. ct of chest k. mri of tspine ok. big breast.better w/rest

Mid back pain: Can indeed be coming directly via a nerve from a degenerated level at the thoracic spine, 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.