Imho it's never a good idea to let a Chiropractor adjust your neck, particularly if you have documented neck problems.
Prior to my 1st neck surgery my surgeon sent me to PT for Cervical Traction, which caused one of my herniations to shift which in turn caused additional pain and migraines the like of which I had never in my life experienced. I later learned that traction is contraindicated for people with multiple disc herniations
Additionally, my muscles were so tight and guarded from pain that the Mechanical traction caused one of my costovertebral joints to slightly tear away from where it attaches to the spine in my back. 11 years this April and I still have pain from this.
The whole experience was a nightmare, I guess I'm fortunate, it could have been worse.