today i found a small lump on the side of my vagina. ive never had sexual intercourse ever, but i do masturbate. at first it started when i felt a pain that felt like a rash in between my legs near my bum. i realized it could just be chafing, since i wear leggings and jeggings. but, it hurt more and more as i walked and at home i checked and felt a small lump on the side of my vagina on the outside of one of the lips. it kinda of burns, and im scared to ask my mom about it.. help?