If you’ve seen the Neanderthal No More stuff you know about how your shoulders and arms are held in position on top of your rib cage by your muscles. And how tight muscles can pull your shoulders forward or inward or whatever.
There are some therapy guys who say that tight muscles can pull your rib cage into inward rotation. Like a tight lat and pec minor on the right side can pull your ribs down and forward, kinda twisting you to that side and scrunching you up. And if your ribs are stuck, pulled to the right, your shoulder on that side will be rolled forward and unstable.
Some symptoms of this “stuck pattern” are painful right scap muscles, a high left shoulder and your back being pulled to the right side by shortened internal rotators.
Anyway, these bros say the way to fix these issues is to shift your right side “back” and your right shoulder “up” and then take some deep breathes to inflate your right side and “break” the “stuck pattern.”
This stuff seems a little out there at first, but you sort of looked like your pulled to the right in that pic of your back.