I'm a 18 year old female, my exboyfriend had a threesome with two other girls while we were dating. I went to the doctor to get checked and I had a bacteria infection in my vagina so I was put on antibiotics for that, a few days later I received a call from my doctor saying I had chlymedia, *sp and was told to pick up another antibiotic from my pharmacy. I took both of the pills as directed however I'm still on the one for the sti, I have noticed that my discharge has become brown. I'm not sure what's going on or if I should go back to my doctor for another papsmear. Although I just had one last week, I'm scared they could have diagnosed me wrong. Please help! I need advice.