My fingers and toes turning blueish grey?

Lately I've been so cold, which is strange because I'm very hot blooded! Always hot have to sleep naked or I feel like I'm burning, so I can handle cold because normally it feels good but the past 2 weeks my fingers and toes are literally this purplish or greyish color and they feel like icecubes, I've also been having serious chills like my whole body shaking type of chill... I went to the Dr. A couple mos ago nothing wrong perfect health so is it a possible vitamin deficiency? Has anyone else eexperienced this?
My fingers and toes turning blueish grey?
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