Raynaud's. Raynaud's syndrome is a spasm of the small vessels of the hands most often related to cold weather, emotional stress, or a multitude of other factors. Classically it is described as cold hands which first turn "ghost white" and then become purplish in color, most often trigged by the cold. This usually gets better when the hands are warmed. At worst it can cause ulcerations of the fingers.
Cold hands&feet. If you are diagnosed with raynauds syndrome you have it causes your fingers and toes and tip of your nose and ears to feel numb and cool in responce to cold temperature or sometimes stress it is caused by smaller arteries that supply blood to the the skin narrow, which causes lack of circulation to the affected parts of body you may find your fingers, toes, tip of the nose and ear lobes get affected.