Seeking advice....I am in the middle of getting an autoimmune condition diagnosis - most probable culprit judging from how I'm feeling...will probably be rhuematoid arthritis. Right now I do a lot of walking and that's about it. I have a FitBit and most days do 10000 steps, some days more. I have a set of resistance bands calling my name. I'm troubled by overall stiffness and vague joint pain. I'm only 49 and should NOT be feeling like this. Husband suggested tai chi and yoga. I'm open to all suggestions and advice.