hey @danimal6054 i feel your pain (literally). Have you gotten any clues or relief? I'm in the same boat. its like stabbing burning pain between top of shoulder blade and spine when retract scaps. I tried rolling rhomboids, traps, scalenes, RC muscles…all to no avail. Thinking might be cervical, i tried cervical traction which made my neck feel great, but didnt help rhomboid pain.
Saw a chiro and he said 'intercostal thoracic junction may be out of alignment' or rib out of place and pressing on nerve. he did some manip and felt little better but few hours later pain still there. its not constant, only when retract or hold something in front at eye level (like when doing snatches, etc). Im pretty good with mobility and i do a lot for shoulder health. Other than some bad laptop on bed posture and doing some work on rings/muscle ups, I can't figure this out. Really frustrating.