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there are many things I take for granted as just being 'normal'. Hands, fingers, feet and toes turning white with exposure to cold, 'normal', feeling numb, tingly and pins and needles, 'normal'. Turning bluish with continued contact with cold, 'normal'. Turning bright red upon warming... Also 'normal'.
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Well, it isn't normal

I do understand as I have been at fault for doing the same thing.
My Daughter has Primary (pediatric) Raynauds, although she is no longer a child Raynaud's did show up by the time she was 15 years old.
Her fingers and toes will turn white, blue and red. This can happen in cool/cold or warm/hot temperatures. If she is stressed the Raynaud's will be triggered.
This link might give you a bit more information than what you have currently found.
http://my.clevelandclinic.org/servic...menon/raynauds