It is difficult to say without examination. Cervical DJD in itself can lead to pain and discomfort as well as nerve impingement.
Inflammation of surrounding muscles can also cause nerve impingement leading to the discomfort you are feeling.
If PT isn't helping, you can consider another orthopedic opinion to see whether surgery is an option.
You can also consider a pain management specialist to help manage the discomfort. If cervical DJD is a problem, spinal injections to help relieve the discomfort can be considered.
Another option would be a referral to a neurologist to consider electrodiagnostic testing to determine if there is nerve damage.
These options can be discussed with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
http://www.straightfromthedoc.com