RA affects anything that the joints and that includes the bones in your neck. It's one of the reasons that people with RA need to be very careful about using e.g., chiropractors, because our bones, especially our spines, can be much more vulnerable to damage. I'm so sorry that you're experiencing this and I understand how scary it must be.

The good news is that as things go, is not a super rare thing that no one knows what to do with - degenerated discs are fairly common, for people with RA and those without. I don't know what the doctors will recommend, although surgery may be an option. Again, it sounds really scary, but try to remember that many people have had this kind of surgery and have returned to leading good, productive lives.

I recently found a website about spine health that has a lot of good information about various conditions related to your spine. I'd recommend that you do a lot of research, put together a list of questions to bring to your appointment - knowledge is power and the more prepared and knowledgeable you are, the more likely it is that you will leave that appointment feeling better about what happened in it.

please do keep us posted on what happens?