Numb thumb: Your body is very careful at keeping your brain and core 98.6. In cold weather the circulation will divert the heat to the center and fingers and toes will get cold and numb first.
Answered 2/16/2013
5.3k views
Vascular spasm: Possible raynauds phenomen when exposed to cold temperature, can give this symptoms.
Answered 2/17/2013
5.3k views
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