What's wrong with me??

So I was standing in my kitchen and I felt something come out of my vagina and it was like a lot and I just assumed it was blood cause my period is due in 2 days. So I went in the bathroom and my pants were like full of white discharge. Like not the normal amount. But it was like a huge puddle in my pants. I got in the shower and it kept coming out. I'm not sexually active at all and I'm always clean. It wasn't like cottage cheese texture or anything, I know this sounds disgusting but it was like the texture of snot but completely white. It's burning around the outside of my vagina and it's kind of worrying me. Drop your thoughts..