I have it too! I didn't know I had it until I was about 26. I moved to Co from Fl. I have found (through many self experiments - I'm a scientist, what can I say), that if I keep my core warm, I'm okay. I haven't had the horrible pain in the fingers/toes in a couple of years... I hear women are 30% more likely to have it than men...and it gets worse as one gets older.... that's my two cents...