I am more than likely severely dehydrated (I tend to drink 3 cups of liquid a day, if that), and recently went to the doctors for birth control. I found out that I have some form of an infection in my vaginal area (we aren't sure what it is or where it is; I wasn't able to pee enough for them to be able to specify it). Since last night, I've drank at least 10 glasses of water, and I've noticed this brownish discharge. It stains my panties like blood does, and it smells of metal(ish). It varies in darkness. I just got off my period..about a week ago, I think. What could possibly be wrong? Is it the infection clearing out, or old blood making its way out?
If it helps at all, I had sex back at the very end of last month. But, it couldn't be an STD, seeing as how we are both clean.