K~
When they thought my dad had kidney stones (it was actually a big, freaking malignant tumor slowly killing him...but I'm not bitter or anything), they kept him in the hospital for a week trying to pass it...if it doesn't come out, there's simple, same day surgery they can do to break up the stone and make it come out, I believe.
Just drink, drink, drink like a banshee, babe. I hope you feel lots lots better soon. Give yourself a few more days and then tell them you want something done. You can't live like that, you know?
*MooHugs*
Moo