With all those stones out I would classify that as being successful,congrats!
About the pain,I have done 8 LFs so far and (thank God )I've not experienced any pain after.But the pros have adviced that you take a dose of the Epsom Salt to dislodge the stuck stone which is likely causing the pain.If it persists then you have to do a complete Liver-Flush again to get the stone or stones out.It is advisable to repeat the Liver-Flush every two weeks when there is no problem.Make sure that you use lots of malic acid before.I just use ACV and apple juice and I've been fine so far.Good luck and let us know if the pain is gone.