Sex and health

Almost 1-3 years (inside the lips) has basically been shedding layers of skin. I'm not dry, or itchy, and when I masturbate and finger inside of me. My discharge been coming out chuck of white and it looks like paper coming out but really its discharge, so uh I did had sex my first was with a 15 yr old I his was one yr apart. I mean ones in the blue i will get a sharp pain but befoe i lost my virginity, so when I finger my self in the inside of the hole, I notice It was getting smooth and it tiny bit of bumpy. So I finger the inside really fast untilk its smoother. Now it smooth after 2-3 mins I liked it very much cuzz the smoothness was in there. So couple months or year, The peeling started. I dnt know why but I do masturbate a lot sometimes less, but almost a week after or a month are so it get lumpy like its peeling slowly. even if it does I still finger it inside, It's not every day. Its weird, but i knos for an facts I used to itch a lot when I was a bit younger and had to clean my self and use a cream for the itch to stop it used to be really bad and had a lump on the side if the vagina two of them above and under by the clitt and now I have a whit spot from its old bump I used to had , it look like a birth mark like those ppl have those skin conditions or they make they skin white idk . but it loom like that it was in the past, but ones in the while I itch down there it could be cause Witness, the underwear, not wiping good or other reasons .but its hard to explain but help if you can.? Its really lump a layer of skin peel my each row and its weird when I finger myself the inside ... Thanks for help if needed?