I am on the 3 month depo and have not stopped menstruating for 6 months. it has now come to a point where it's making me miserable. i am also experiencing vaginal discomfort and pain?

Suggestion: First, you need to make sure that nothing is causing the bleeding like thyroid problems or uterine fibroids. Then have your doc check your estrogen and progesterone levels. Usually, a short course of progesterone 10mg/ day will shed the nests of endometrial issue that continue to bleed...a medical D&C, so to speak. Please know that you'll be fine.