guessed as much!

your winging scapula is not the cause. your neck is....

you most likely have a stiff thoracic spine, dodgy scapula control (tight rhomboids, poor serratus) and most importantly a jutting out chin. this is made all the worse in breastroke and using the float. because your thoracic spine is stiff you lack extension (or getting to neutral) so you force your mid cervical spine to compensate. this bendy mid section refers pain into the scapula (clowards area).

you need to get your physio to get your thoracic spine to move and then treat your anterior cervical spine - pushing from the front and never the back.

retrain your posture, not your scapula - keep your head on your neck.

cheers

sixphysio