How is your back doing?
Is you trunk movement organized?
When there is an issue with the spine the primary engines of the hip and shoulder are impacted.

Have you watched any of the episodes which address the back?
If you know someone who has or if you can get access to an estim unit that is one way to address your back pain.
Are you still completing the exercises from the physio?

Are you continuing to address the trap?
How is the movement of your scap?

Are you working on stability within your shoulder?