Cold fingers, toes, and hives

[alexanswers]

For the past couple of months I've noted my finger and feet are always cold. Lately, I've noticed that when it gets really bad (when they're very cold) I develop hives on my ankles. I have cold urticaria, which is an allergy to the cold, but i'm pretty sure it's only external stimuli, not internal.
Could this be a blood circulation problem or something else?
Thank you.

[achillea]

The hives on your ankles are related to cold urtica.  You can google this.  Cool fingers and toes, even blue or reddish colored (Raynaud's Phenomenon) are also part of it.

A better understanding of your cold urticaria would be helpful.