Good that you are getting into a rheumatologist.
It is important that they treat the disease and not just the symptoms.
On your first visit take a listing of all drugs, vitamins, supplements, etc. that you take and the dose. Bring a family history of any auto-immune or arthritis issues. Be ready to fully explain all your symptoms (remember skin issues, headaches, memory issues, etc. can be related to arthritis so leave nothing out).