do you have any tenderness over your spine? could possibly be a cervical or thoracic spine injury.
Do you have any deformation or pain to touch or pressure over your AC joint (the tip of your shoulder)? Could be an AC separation - but the ortho should have seen this. It could also be impingement of the shoulder secondary to traumatic injury.
does it radiate down your arm? any numbness?
What positions or activities hurt the most?