I just wanted to let you know something you might find useful.
I noticed that, when I went on a gluten free - casein free diet to clear up huge digestive issues, many other issues resolved for me as well. One of which includes joint/muscle pain and inflammation, all over my body.
While you're in the process of developing your fibro diet, please considering doing GFCF as well. I can't tell you how much it helped me!