Michelle,
Thought you would like to know that I caught an artical in USA Today last weekthat explained the cause of your stones is Glogal Warming.

At least that is what the story would like you to believe. It left me wondering what else they can find to blame on the so called Global Warming. Can't good old Mother Earth just have a natural warming trend, after all we are comming out of an Ice Age.
They claim that because of global warming people tend to dehydrate more which has caused a spike in the number of kidney stone cases. So Now you know, all you need to do is drink a lot

to avoid future problems with stones.