How do i know if i have vaginal yeast?

Hi, i'm 20 years old female. i'm a virgin, never have any sexual intercourse. today i was looking at my vagina from a mirror. i noticed that my outer hole has like a white-something i don't know. i can't even see inside it i mean like it doesn't even look like a hole to me, because it's like still tightly closed. Maybe it has something to do with hymen? i was wondering if what i see is the yeast thing that is white or is it a hymen? because i don't feel like i have any problem down there. i don't feel itchy or have any odor or found something strange. it's just i see like whitey thing but it's not like a liquid its just like stuck with the skin, cause i cant get it off. Help me cause i tried to google the image of a normal vagina and my vagina sure looks different (in the hole part) and also when i google the image of a vaginal yeast infection it doesnt look the same either. so im really confused :/