My wife has Raynaud's Disease, which causes symptoms of cold feet, hands etc. 95% of sufferers are women and it is estimated that 20% of women of child bearing age have it to some degree. It took my wife two years of battling with the medical profession before the pains in her legs were diganosed as Raynauds. I'm not saying, of course, that you do have Raynauds, but it may be worth you having a look at the Raynaud's Association website at www.raynauds.org/ for more info. Even if you do have it, it's not necessarily a big problem if you have only mild effects. Good luck!