Lots of us who have cervical spine issues also are dealing with hellacious muscle spasms. Surgery has helped somewhat but in my case created more hell (paralyzed vocal cord).
Here is what helped me thru those pain scale 9--10 spasms.
1) Moist heat with electric heating pad. Bought at local pharmacy
I cannot emphasize enough how much this helps! Get the big rectangular one with the sponge like insert that you slide in wet so it delivers moist heat.
2) Cervical ice packs purchased online
3) Jacuzzi JAcuzzi Jacuzzi
4) Valium on occasion
5) the two tennis balls in a knotted sock trick, place yourself and the balls at pain site leaning on a wall and really lean into the balls and roll up and down to fatigue muscle.
6) Ther-a- cane worked occassionally for me though others swear by it, I bought mine from a PT for $50 and saw it on line for $30
Ck out earlier post "stupid therapies I tried" and blew a ton of money and time on things that did not work.
Limit your overhead movements and pulling and pushing with upper body. Your body is injured and it deserves consideration. Limited sde motion is "guarding" due to injury. May want to stay away from physical therapy that wants to push you.
You are in the riht place...we know your pain.