Five years ago, I started with cold urticaria (and it became cold/cholinergic a few years later). I don’t think it was ever really external temperature-based (except that one time I walked near a Costco refrigerator), as I’ve stood outside at midnight in the winter and been OK before.
I think mine, even now, is more of an internal shift in temperature, like if I’m exercising and sweating or if a rogue breeze sends chills down my back. Does anyone else have cholinergic urticaria in this way?
I feel like everyone’s posts that I read are more, like, “Don’t go outside if it’s below 40 degrees”…