Before overexercising, my fingernails were normal pink like most people, but now they are purplish all the time from both hands. Occasionally, One or two of my fingernails
would get very dark
blue. But this doesn't seem to be related to cold exposure or stress. Unlikely to be raynauds.
And not only that, also my tongue, ears, face after shaving, before turned reddish but now they seem to have suffered from that discoloration too, they turn purplish.