I've had the same changes with nails you've all mentioned. I've also had the hair changes. I have RSD on both of my legs so while I see the changes there, there has been no "normal" one to compare them too. But I have it in just one wrist and you can see a huge difference in the hair on my RSD arm. It is much thicker and darker and the nails grow more slowly and are brittle. Not to mention all of the redness, swelling, shiny/scaly looking skin, etc. RSD is sure attractive, isn't it?