Lower right abdominal/pelvic pain. Heavy bleeding for 6 yrs nonstop, some discharge, low back pain and constant urination. What's wrong with me?

Need more info ... It would be impossible to say what is causing your 6 years of symptoms from just your short description. You need to see your doctor, and AS SOON AS POSSIBLE. I would normally say you should rush to the emergency room, but, if you've had these for 6 years it could probably wait until Monday for you to schedule a regular appointment. In any event, you NEED to be seen and evaluated, in person.
See Gyn. You need to go visit your gynecologist. This is too long to have heavy bleeding and now you are having pain.