first liver flush, please help.

I did my first Liver flush(Clack method) on Friday evening(Aug. 4th), I was so miserable that night, nausea, vomiting from 3:00 AM to 5:00 A.M. I did not know I passed out anything because I don't have any energy left to check back.
But right now the big problem is I have a lower back pain since Saturday afternoon, from what I read here, I guess I have some stone stuck in somewhere.
I think I need more liver flush, but I really cannot tolerate the Epsom Salts again.
Anybody can tell me any other method? especially not using Epsom Salts ?
Thanks. Tweet