I have an awful odor and a brown-ish discharge coming from my vagina. what is this? i am sexually active. i am on birth control. i have a history of endometriosis in my family. i am not allergic to anything.

You : You need to be seen immediately and have a complete evaluation of this problem. It could be an infection, or possibly related to endometriosis. Please see a gynecologist immediately for this problem. If your gynecologist can't see you, or if you have pain, fever, vomiting, or light-headedness, then you will have to go to the er.

Lost tampon: This is most frequently a list tampon which could cause a severe infection. See your gyno now!