The Ready State Virtual Mobility Coach is like having a virtual Kelly Starrett in your pocket.
Your shoulder/ upper ribs/t spine could tie in.
If you have a subscription have you watched “soft tissue of the neck”?or “soft tissue of the upper back”? working down stream
Jill Miller and Your Dys-Supple Neck
The Beauty Queen, First Rib Overhead Mob of Death
Pain is a lagging indicator.
The trap is sensitive, but are you working through it?