I had C4/5 and C5/6 fused in my neck. My right arm was going dead (pressure on the nerve) Got to the point where it was not strong enough to lift 5 pounds.
I was fine one day...... Got up one morning, yawned and stretched, then bang... Felt like I pulled a muscle in my neck and shoulder.
Herniated discs, bone spurs, you name it, I had it. After reading the MRI report the doctor asked "What did you do?"
Then she told me....... "You need a new neck."
Long story short......... Had surgery about 3 weeks after my diagnosis. It immediately fixed everything.
I was off work about 3 months because of lifting, pushing and pulling restrictions. (but this will depend on the kind of work you do, if your job is less physically demanding you could be back to work in weeks.)