A year ago, after getting a nasal cautery (third one in a year in a nostril that kept being problematic) I started getting spasms between my neck and shoulder,

A year ago, after getting a nasal cautery (third one in a year in a nostril that kept being problematic) I started getting spasms between my neck and shoulder, it happens whenever I'm laying on the bed on that side. Massage makes it worse, but that's also my "bad side" when it comes to muscle knots, even before the little surgery. Stopped wearing a backpack since then to see if that was the culprit, cut down on caffeine, MRI & Angio show up OK, but still no go. Maybe the ENT messed up my nerves? Asking for a friend.