ahhh....kidney stones....my old "friend". I wish I could say I have never passed them, but I can't. My first stone had to be surgically removed due to the size, it was blocking my kidney (it took them two yrs of me being in on and off pain to find it). Thank goodness I had no damage. My mom said she rather give birth than pass a kidney stone. I have not had children, but I have had kidney stone pain...and it makes me wonder if I even want to try labor. When I have kidney stone pain (or attack as its called), I have a dull ache in my lower back that becomes more intense to the point that it feels a band wrapping tightly around my body, cutting off my breathing. This is usually accompanied by the inability to find a comfortable position, sweating, vomitting, screaming (if you can get the air) and feeling like all you can do is pee (often this is a first sign, the feeling of a full bladder but do drops when you go). I find some relief with a ice pack (if I can lay still long enough) or someone rubbing my back (like you would a woman in labor). I usually take a half of davacet (sp?) and three advil (as recommended by my doctor) as well as a half of phenergan (sp?). It usually helps ease the pain. I am on a medicine called Urocrit-K to help break them down since I have so many, however I dont think it is working. My father (no CF) has kidney stones badly. My mom has had them too. I'm not sure if it CF related or genetics for me. Plus I live in the kidney stone belt of America. My kidney stone problem is pretty bad....in June of this year, in 11 days I passed 12 kidney stones. Seems like the more I pass, my body get use to it and I dont seem to have severe pain, just non-stop feeling to pee and some slight pain in my urethra (like hot needles poking) when one is ready to be passed...which I rather have that than full blown pain (last time I had a full blown attack was the last day of my honeymoon in Oct 05). I'm not trying to scare you, but I wanted to answer you question as honestly as possible. Drinking water will help you (I am the worlds worst for not doing it), laying off soft drinks (I have flare ups when I drink a lot of them), careful on red meat and dairy intake (if you notice when you have these products u begin to hurt more in your lower back). From what I understand, once you have one, the only thing to do is pass it...it doesnt go away. But drinking water helps make the passing go smoother. I've actually heard if people drink distilled water it helps even more.