Wow, thanks for the image. Although I can hardly make anything out with the clarity of that picture.
If the pain is discogenic (ie. originating from the disc) then certain standard assessments must be completed.
These are imperative hands on tests that must be done to determine the problem
I would suggest, even just getting a singular assessment from a Physiotherapist. At least that way you would be sure.
The area circled on the graph corresponds to the Xray, and my initial assumption about scapular strain is perhaps incorrect. I assumed your upperback was the source of symptoms, not the higher Lumbar Vertebrae.
Keep us updated, thanks for the clear info!