Hey Kay!
A couple of areas might be a good fit for you...first, please check out our "Weight Watchers" forum. We have groups for people on both the Flex and Core plans, and both are active with lots of chatting and sharing of ideas. Head on over.
Second, visit our "Dieting with Obstacles" area...I believe we have members with RA, and am fairly sure we have members with fibromyalgia as well. Sometimes it can be helpful to talk to people who have faced the same obstacles. You can use the "Search" tool in the top navigation bar to look for threads on RA or Fibromyalgia.
Otherwise, look around, settle in, and get to posting. Can't wait to get to know you better!