I had sex with a guy last week we didn t use a condom the whole time, last night I had a really bad itch in my vagina, half way through the day today I was curious to see why it was itching so bad , I look inside my vaginal opening and I freaked out, still am, there is some tissue that s in there closing up the opening with white stuff too and white cottage cheese like stuff coming out, I wear a waist training garment under my clothes all day at work and I sweat so I don t know what this is, I m so scared I need help! Is it an std like genital herpes or yeast infection? If any of these what s gonna happen to me?:(