Well, that sounds interesting. They have the RA and I have done it on my own. My C-Reactive protein is up and down. Can be high and can be normal. I do have Hashimoto's Thyroiditis which is an autoimmune and have always just associated all the pain to it, but as time goes on, wonder if Fibromyalgia. Did do testing for Polymyositis but again inflammation markers weren't high enough even though they were high. My symptoms tend to be not consistent. I do notice if I don't move for very long, I can hardly get up. After getting up and moving around, it is better. If I try and do too much it gets painful. Bending, getting on the floor etc. are painful. Mainly in areas around the joints, tops of glutes, all around hip bones (ilium), down legs and muscles in thighs.