Hey, welcome to the club. Maybe you didn't want to be part of the club, none of us did really, but we're all here now and everyone is pretty great around here. They were really helpful to me when I was new and I'm sure they will be for you too.
I don't know squat about WC, but I do about the burning/freezing. I've described my pain at times as a cold burn. I told the doctor when I said it that I felt stupid saying it like that, but he said I wasn't the first person to describe pain that way and it made a lot of sense to him. When it started for me it was straight up burning, but since then has settled into a cold burn, which is neither just cold, or burning but somehow both and neither at the same time. I still feel stupid trying to describe it lol! Anywho, it isn't that unusual I guess from what my doc said so don't feel weird. I hope you get answers soon. Have a great weekend.