Debra,

The color changing is all part of this lovely disorder. Just the like the sensations, etc. I hate it - my fingers got a purplish color, kind of matched the mottled purple-reddish color of my messed up foot and knee. Changes in the nails are also common. Mine have horrible, horrible ridges of them. They feel so gross. This may also sound strange, but it hurts like hell now to cut either my toe or finger nails. They are extremely brittle though, yet thick. I don't understand it.