Kidney Stones and blah, blah, blah

Just got back from another fun-filled trip to the ER. Found out I have a 6mm kidney stone in each kidney. No wonder I have been in so much pain. Rob went with me and was not happy that they didn't find it last time (3 weeks ago) and is ready to sue for the lack of a diagnosis. It is frustrating to not be able to get straight answers and we would appreciate any advice about helping healthy kidneys. :)