My first WLS complication

I ended up in the ER on Saturday night, with what ended up being a kidney stone.  It all started around 6 o'clock, just as we were entering the movies to see the "Simpson's Movie".  Within 10 minutes I was in so much pain that I had to ask Chris to take me home.  At this point, I really though I just had some bad gas.  I got home, jumped in the tub to try to calm down and waited.  The pain just got worse.  Chris called Dr. U - he recommended that I not wait more than an hour to get to the hospital.  I decided that I would wait a bit in hopes that I would feel better.  I never did - the pain centralized to my right abdomen and it started to throb.  We called Dr. U back and had him call the ER to tell them that I was coming.  I hobbled down the stairs and fell into the car - I was in so much pain.  That was a really awful car ride.  When I got to the ER, they got an IV started, took a blood sample, and then FINALLY gave me some pain relief.  They started with morphine, which didn't help much.  So then they went to dilaudid.  Better.. much better.  I had to drink 2 cups full of juice, water, and a contrast liquid to get me ready for a CT scan.  The CT scan found the kidney stone.  We were so relieved that it wasn't anything intestinal.  They basically told me that I would have to pass the stone, and that I would feel instantly better.  So I was sent home with lots of drugs, told to keep the liquids coming, and to come back if nothing had happened in 48 hours.  Thankfully it didn't take that long.  I finally passed the thing around 2pm on Sunday.  So - I'm fine.  I'm going to have to do some research about this, because I definitely don't want to go through this again.