Your symptoms are diffuse and probably caused by more than one disorder.
The neck pain and upper thoracic pain are probably caused by cervical degenerative disc disease. I assume that your statement; “There is a complete reversal at my T2-6” really means “C2-6” which would be an indication of significant global degenerative disc disease.
Your right arm weakness after sleeping could be from a nerve compression syndrome like thoracic outlet syndrome or cubital tunnel syndrome. See descriptions of these disorders on the website. Cervical radiculopathy cannot be ruled out with the limited description.
Before you decide that you need surgery, you need a good diagnosis and discussion with your surgeon. The reason for surgery should make sense and the outcome should be discussed. A bone scan appears not to be necessary.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.