I received the second dose of the vaccine the end of Feb. In early summer my mouth suddenly went completely dry and my knees and hands started hurting. I was recently diagnosed with RA. I know it was several months after the vaccine but I just wonder if I had some joint pain but just blamed it on old age. I have been wondering if the vaccine had anything to do with it. The RA doctors group they referred me to has yet to contact me after 3 weeks.