I come from a family of women with small bladders, and I also drink a lot of water - it's amazing how much better I feel when I do so! One thing I have noticed is that my body eventually adapts to the increase in fluids. The first few days, it's just awful - I'm constantly in the bathroom. But eventually, my bladder seems to settle down a little bit. I'll never be one of those people who can wait hours before going, but at least I'm not in the bathroom every five minutes anymore.