Help is this normal? Vagina folds (labia majora) skin shedding!?

Ive been going thru puberty for 4 or 5 years now i recently started getting some brown stuff like a paste from the folds of my vagina (my vagina itself is brown) they smell diffrent but not bad when I wipe front to back they don’t show or smell wrong but if I wipe my folds they come out and either fall off the tissue or stay on as brown skin rolled up. I recently got my period and start ovulation in 4 days it never burns or smells fishy, or hurts or itches much. I’m a virgin never had any sex. Is it just skin shedding or..? What someone help me!