I noticed an odd smell coming from my vagina maybe, two months ago. And it smells really bad and is a thick, white substance. And it kind of hurts down there, like, burns in a way. I'm 14 years old and I have had my period for about 3 years now. I've never had sex. But, this is really embarrassing and I don't know what to do. I'm too embarrassed to tell anybody, even my mom. I just feel so gross.