Vasospasm: It appears that you're experiencing intermittent constriction of blood vessels in those digits. This can be due to cold exposure or spontaneous vasospasm. Raynauds phenomenon is a syndrome where coldness and color changes of the involved digits occur on exposure to cold.This phenomenon can be part of an autoimmune disorder. Consult a rheumatologist for evaluation and advice.
Answered 1/23/2018
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