So I'm 18, virgin, I don't masturbate or do anything sexual, got my period when I was 12. "Ever since I could remember" my vag has always smelled, and after a "day max" my panties turn brown (not the whole thing but a slight line) and smell too. And it's not poo or pee. I don't know why this is happening, I hardly drink anything other than water, my pee is clear, sometimes slightly yellow.