Last week I injured my upper back while doing some hard cleaning. Since then on and off my upper back has been hurting. Now it is in my right shoulder blade area and it hurts only when I move, sneeze, cough, etc. Also whats weird is it sometimes also hurts when I swallow, which has me worried. I have been googling and have come across anything from lung cancer, etc. I am so worried, I am going to see my Dr. Friday but until then I am worried to death. Has anyone ever had this before?