So I have been seeing a lot of posts about the Diva cup and other brands. I'm really kinda curious about them. My periods are really heavy. I have to wear a super size tampon and a panty liner at the same time. Even then I have to change every hour on the hour. Most of the time I'm changing both cause I leaked through. Would they overflow or leak? Would the be worth trying with how heavy I am? How do you wear them while having sex (another thing I was reading about them). Opinions?