Long periods, increasing pain

Jessica
I have very unusual periods my while menstruating life. They start out light for a week then get heavier for a period of time. Usually I am on my period for over a month at a time and I usually go through ultra tampons every 30 to 45 mins. Currently I have been on my period for 3 weeks and 4 days. The cramping is increasing but the amount constantly changes from light to super heavy at any given time. I have tried everything and nothing works. This sucks.