Periods and nappies.

So this is very embarrassing, but basically my periods are ways extremely heavy. Wearing pads are a no go for me because I have to change them every 20 minutes and I leak everywhere. It has gotten to the point where I have to wear adult nappies instead of pads because otherwise I would be housebound every time I have a period. I was just wondering if there is anyone else who has had to resort to this so I know I'm not alone?