Hey,
Brown vaginal discharge means discharge mixed with old blood. Many women have it both right before their period comes along and after it's just ended and your body is cleaning the remnants out. Have you always had it, I mean since you started menstruating?
The only thing I'd be slightly concerned about is the foul smell. Does it smell like old blood and discharge, or like an infection (more like something has "gone off")?
Of course, if you're, like, seriously worried about it and it really does smell bad and not like your period at all, definitely see an OBGYN about it.
Douching doesnt help. i have the same issue. Im 3 yrs celebate, so its not std... but im thinking thats its bacteria and old blood. When i douched the smell came back in a few hours.