For the past few months, I've been getting REALLY hot after coming indoors from snowy outside. It's not normal and it never happened before... I have to strip down to my undershirt and I still sweat for like 5 or 10 mins. and then put everything back on when I feel back to normal. This sucks because I walk to my classes, and then when I get there I have to strip down and it's embarassing. I'm not old or fat... I'm 19.