^^^This
I’ve had this feeling in my right arm, (the side where my 6cm styloid was know resected). I’m working on fixing it, including retraining the arm.
A lot of good visual 3D resources are on this YouTube channel https://m.youtube.com/@3danatomylyon904
They show how the healthy body is supposed to move at various joints/parts.
Some of the shoulder movements are showed here:
