"What's goin on with me?"

   Hi everyone. I thought I'll write, because I have couple things on my mind. I got my blood work back and the doctor said my Sed rate was 22. I dont understand because both of my knees are swollen and painful. I also was diagnose with OA. Could this be coming from the OA? I am changing my Rheumy because she swears the Enbrel and Methotrexate is working. The communication between the two of us isn't making me feel comfortable with her decisions. How do I know if what I am feeling is RA or OA symptoms? It all seems the same when you have both at the same time and for less than a year. Please help