i remember when i first moved out here in Ohio coming from San Diego i was outside on a utility pole hooking up some cable connections 7pm at night. Temperature was -3 with wind chills of -11. i got my first minor frost bite and had no clue i got it. it was so cold up that pole that i couldn't get a grip on the fittings so i took my leather insulated gloves off for just 5 minutes so i can feel what i was doing. got back down from the pole and jumped in my truck to warm up my hands over the heater vent and my hand literally felt like they were on fire!
my finger tips were white and didn't turn back to it's normal color. the next day i couldn't feel my finger tips and they were still white! i showed my coworkers and they said "yup! that's frost bite!" it took almost 6 weeks until the skin peeled off my finger tips that i could start feeling anything again
