@isabelle7 The simple answer is arthritis is affecting your neck. Anterior spurring at the C5/C6 disk means there are bone spurs projecting forward into the spinal canal, and the question is how large are they and is the spinal cord getting touched or compressed by any of this? Bone spurs grow from inflammation around a ruptured disk and because of uneven pressure on the bone of vertebral body. The uncovertebral joints are just kind of bumps on the vertebra bones to the sides of the disks that can touch between the 2 levels. These are only on the neck from C3 and below and those joints have enlarged a bit. You are also getting nerves pinched at the nerve roots which will cause pain to the area served by that particular nerve which is described as severe at C6/C7. This dermatome map explains how nerves leave the nerve root to go to the body. It sounds like you may have a disc rupture that extends into the nerve root area at C6/C7 that is causing bone spur growth there. That's my guess, and an MRI will confirm what is happening. I'm not a medical professional. I did have spinal cord compression from bone spurs in the central canal, but did not have nerve root compression. The good news is your disks are maintaining normal height, but there may be a damaged one.

This explains dermatomes.
https://my.clevelandclinic.org/health/body/24379-dermatomes.