What would cause a backache from just below the shoulders?

Cerv Radiculopathy: Pain here is likely a pinched nerve from arthritic pressure and/or a herniated disc, or tendinitis (levator syndrome). Aggravated by poor posture at a computer. An exam by your doc can help determine if there is significant injury deserving of further studies or treatment. No hurry if not worsening, but, should be seen if not getting better. Nonsurgical usually helps. Try salonpas hot patches.