I recently was in hospital for 19 days with hydronephrosis caused by a suspected kidney stone, I can't even begin to express the pain I went through I was like something possessed screaming however it eventually passed... Only advice I can give (the only advice I've had) is drink lots and lots of water!
My best friend had them really bad during her first 2 pregnancies. During her 3rd she started drinking apple cider vinegar every day. She used Bragg's brand (has the "mother" in it). She would mix 1 tablespoon in a glass of water and drink that twice a day. She didn't have any trouble with kidney stones during that pregnancy. It's supposed to help break them down. I used apple cider vinegar during my pregnancy for morning sickness, and it was amazing. If it has too much of a bite, mix a teaspoon or so of honey into it. Once you get used to the flavor it's really not bad
Re: kidney stones?!