One of my friends swears by the Diva Cup, and I kind of want to try it. I have very light periods but they typically last for over a week and it feels wasteful to use pads. I used to have chronic Bacterial/Yeast infections and it's pretty much under control now but I'm scared this might cause them again (doctor could never pin down why I was getting them in the first place). Anyone else use the Diva Cup? What are your thoughts?