did they give you flomax? i had a bout of stone induced renal colic in august, where the stone was blocking the tube to the bladder. that pain was indescribable, as i'm sure you can guess now. it was enough to put me in the emergency room. once the was worked into the tube towards the bladder, it was still painful, but not cripplingly so. and then once it made it to the bladder, the nurse gave me some flomax on top of the pain meds to relax the urethra. i never felt the stone after that. i also had a follow up stone come out of the other kidney a week & a half later. that didn't cause a blockage. i took the couple flomax i had left along with aleve, and it passed without much pain a couple hours later.
after you get done with this round, you will want to at the very least cut out all colas. i went cold turkey on all caffine drinks and just switched to water at work. once i was staying regularly hydrated, even overhydrated if there is such a thing, i didn't need a caffine bump during the day thanks to being able to get to sleep and staying asleep during the night. i will have an occasional tea or coke these days, but if i don't have it before lunch, i'm sure to feel it when i try to go to sleep. i also lost about 8 pounds in a month after quitting colas.