Thanks for visitng HCM.
This pain seems to be musculoskeletal in origin as your tests are normal. As you said you have got history of cervical spondylitis
, this may be one possibility with similar type of picture. You may go for xray cervical spine
both anteroposterior and lateral view and meet an orthopedician or neurosurgeon. If there is straightening of normal curve you may have this problem.
If the pain is too acute, one may need cervical traction followed by cervical belt. Analgesics with muscle relaxant
will definitely help.
There is certain role of physiotherpay to help strengthen the neck muscle to maintain the normal curvature of the cervical spine.....