Hi, A day after having unprotected sex, I started experiencing burning on the putter skin near the ending of my virgina where the vergina and butt crack meet... A day after. I started accumulating dirt-like particles between the outer part of the vaginal lips/labia and is only noticeable when I wipe (have cleaned the area several times and just re accumulate). Now it is 4 days later and I have experienced swelling of the valva, fish-like odor, buring , itching and now a white milky discharge.... Is this a sign of an STD?