Morning Upper back and chest pain.

I am 41 yrs of age wt, 72, ht 5.9 , non diabetic, gym going person. I am  experiencing Morning Upper back and chest pain from a month, I have consulted orthopaedist thinking it was something related to gym and spine but he said it was all normal , consulted a different Dr who is an MD and he gave me medicines which is good enough (myospaz, pan40), however the day I do not take his medicines I get a severe pain in my chest and upper back early morning and the pain disappears in 1, 2 hrs, I am tired of all the medications and consulting. I work in IT and was a regular gym going person, I have stopped going due to this problem. ECG , X-ray of chest and back , blood pressure appeared normal. Please advice what is the actual problem. Thanks.