Uneven menstrual flow?

I've always had this problem. It can be quite embarring as well as miserable. What I do, is that at night when I'm sleeping, I wear an adult diaper under my underwear (the crinkly-diaper sound drives me nuts when I walk around - and the panties help eliminate the sound.) During the day, I wear these new pads made by Always. They are an overnight pad that is 15 inches long, and covers you from front to back. I like that it has a wide back for when you sit then get up, and you leak a little.