Sometimes I struggle to tell whether my foot is intensely cold or hot...the burn feels so similar at its extremes....
I tend to find that if my foot gets icy cold and I don't deal with it (heating pad, warm blanket etc) to get the temperature fairly normal quickly, then later it will suddenly fire up and I get the petrol on fire feeling like my foot is roasting in my sock/shoe. It's normally an evening thing. Saying that, sometimes it will just fire up anyway!! Generally, very cold ends up being very hot later. The burn lasts a good 1-3 hours depending, sometimes more. That's when a warm Epsom foot soak helps...
I hate cold. If I get chilled, my whole body hurts now and then all my cripsy symptoms get worse. I dress like the Michelin Man at the moment to go out, and in the house I wear hill-walking trousers and about five layers with a fleece!! Mental.
Good luck guys
Bram.