Hello !
I read your question carefully and understand your concern.
I would recommend a cervical column
MRI to examine better the anatomical problem and if there is any compression to your spinal medulla from the displaced disk. The MRI would also examine the grade of the possible displacement of the disks, and would also help the neurosurgeon to decide if surgery is necessary.
As far as I understand from your case you have been using for a long period
opioid. They lead to tolerance development and dependence over the time.
So I would recommend for the pain an antidepressant like amytriptiline , which is very effective in chronic
nerve pain, and helps with your emotional state.
Another good option would be gabapentine, an anticonculsivant , very effective too.
These two medications should be given under medical prescription and do not cause dependence or tolerance.
Hope to have been of help!
Best wishes, Dr. Abaz Quka