Hi there, well I been having "hot flashes" for a few years now, I was diagnosed in 2004 with crohns, i had my intestines rupture, since then at night I tend to get hot flashes to the point where it can be regular so I dont remember not occasionally having them, I do not register fevers anymore either, though I did as a child. Ive had other hormornal issues related to taking birth control pills (which I cant take anymore) but I would recommend mentioning it to your doctor just to be safe, it could be related to any number of females things or some maybe something to do with meds your on.
Hang in there, Im 25 now, so you arent the only one dealing with these things at such a young age.