Re @emma 's reply, the info @vdm gave was in this discussion:
List of my favourite resources on YouTube to learn anatomy - General - Living with Eagle
There are links to retraining muscles etc, not sure how much was about the arm or shoulder, there’s alot about exercises to improve posture & restore the neck’s natural curve…
It’s the spinal accessory nerve which can get irritated during surgery.
I wouldn’t rush into doing any exercises yet @alibabac , make sure you’re healed properly first, it’s still early days.
Glad you’re doing well @emma , and thank you for still popping back on to help out 
1 Like