large stone stuck

i've had a problem for the past 3 weeks. i've been dealing with painful gallbladder attacks since i was a kid. i began the Liver Flush in october. 3 weeks ago after my last flush the large stone from my gallbladder finally got pushed out. i have no idea how big this thing is but considering how much it hurt when it was released and that i actually felt the thing travelling through my intestines so i assume it's got some good weight to it. anyway, i felt it travel through my large intestine and it has been stuck near the exit ever since. i had a colonic done over a week ago which helped push the stone along but since then i have had bouts of pain near the base of my spine. i have tried many remedies to no avail. does anyone have any suggestions on how i could eventually get this thing out? thanks for your help :)

ab