I am having a flare up right now. It's Sunday so I can't get in touch with my RA doctor. It's my right knee that I can't move. I can't even walk to the bathroom. I've had RA for about 3 years and I'm on Methotrexate. For the most part it works great. But I think over did it. I was on my feet on Friday at the mall for almost 4 hours. Then Saturday on my feet taking down Christmas decorations for half of the day. Does anyone know if this would be the reason for the flare up or has the Methotrexate stopped it's effectiveness? Also, I have another question about diet and RA. My Rheumatologist is adamant that diet has nothing to do with RA. However when I was eating a diet low in gluten, diary and fried foods I did feel better. Is diet related? I can't seem to get a straight answer.