Your DR. should have explained it?
It sounds mostly normal, with a little indication of some arthritis or wear type damage. (we get old, it happens.....) 6-7 has mild disk damage, but most likely will resolve itself with conservative treatment or lifestyle.
You can slow down the wear, and help the improvement:
Drink plenty of water. (yes, water helps everything, and disks are fluid sacs basically)
Reduce impact sports, such as running on hard surfaces. Don't "twist and pop" your neck.
And very important, strengthen your neck and shoulder muscles. This is what takes pressure off of your c-spine.
Contact the radiologist who read the scan...they get paid (lots) to explain what they are saying. By the way, I always look at the scan as they are talking. They may not know the cause, but it is THEIR job to help you understand the report. If they try sending you to your primary care doc, just say "Nope!" and insist.