Am i allergic to cold air?

I first broke out in hives when i was 11. That was when i was in an air-conditioned room. Only my arms, legs and hands get hives when i'm in an air-conditioned room or even when there's a cool breeze. It's only when i warm myself that the hives go away. And they itch like crazy. Recently the hives have become more acute. Am i allergic to cold air? Because when i bath in cold water i don't really get hives...

Thank you! Any advice? Other than keeping warm as much as possible...

thank you :)