Right hand fingers and right foot 3rd, 4th and 5th digits are colder than the left. this occurs almost daily and at random times throughout the day.

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.