So two mornings ago,I started feeling some itchy sensations around the vagina. And last night when I went to the bathroom,I checked myself and noticed that along the inside of my vagina,it was a white color,and it kind burned when I pee. I've avoided sex the last few days but I did have sex November 19th. I'm scared it's an STD but I'm not sure. I was told by my sister that it sounds like a yeast infection. Now this white stuff I was talking about,there are some parts that I discovered would scrape off with my nail very gently. Up going upward,once I touch near the clit it kind of burns. But it's not a bad burn. What do you think?