Last year I had a burning sensation between my shoulder blades on my back. It felt like a sunburn and at first that was what I thought it was. I had been at the pool with my grandson for several hours and did not seem to burn, but the pain did not go away. It felt like someone was ironing my back. I could barely wear clothing even the wind made it hurt worse. I didn't have any insurance so I just lived with it. I could not even stand for my husband to give me a hug it hurt so bad. I couldn't sit back in my chair or in the car. It NEVER stopped day or night. It lasted for almost 6 months. Then as fast as it started it stopped. I was under a lot of stress during this time. It has been about 5 months with no pain and now it has started again. Any ideas what might be going on???
It very clearly suggests that now with exertion you are having pain and it is getting relieved with rest. So you need to rest, follow medication and diagnose your problem properly. I also suggest that you work ergonomically properly at work place and you should have proper back rest, support etc. Take care!