You're wrong about that. I think your ignorance about the correlation between arthritis and matching rcas is due to the fact that you HAVE matching rcas, and probably have for years.
Don't worry. There are programs for people like you. It's a disease and it can be treated. Just get on google and look for the nearest support group. You'll be fine. I'm here for you. Step 1 - Admit you are powerless to the effects of matching RCAs and that your life has become unmanageable.
You have to fully believe that rca's are a higher power. You need to surrender your will to the rca's, as you understand them. I can't tell you what rca's are, that's for you to decide. And please, take your time with this step, it's one of the most critical in the recovery process.