Hi,im 14 and I'm concerned about my health,one year ago i started masturbating without protection,the problem is that i really didn't know what i was doing back then and now i think that i have STIs. the last time i had a period was more than 4 months ago,i have bv and probably a yeast infection, i don't tell my parents because they're strict and i would be in trouble because im 14,i masturbated and they're against it since im a minor,now a random reddish bump has appeared in the labia majora,my sister who is 25 had some vaginal infections and she used multiples times my panties and i just realized, i don't know if it's because of her or me masturbating without protection. So here are the symptoms that i don't and do have: it doesn't itch; it does only after i shave,sometimes there's are strong odor,my vulva is dry,i don't have a balanced ph down there, it doesn't burn nor hurt when i pee,there was some greyish-reddish discharge after masturbating, and blood during masturbation.