I would highly advise again getting your gallbladder out.
So many health complications arise after the removal of your gallbladder including even more digestive problems and heart disease.
8 flushes? I would try atleast double that before you call it quits. Do it in two week intervals and use a ton of stonebreakers likey mike B said. Use beneficial herbs like tumeric and milk thistle to heal your gallbladder.
I understand the pain. I really do. There is a very good chance though that the pain isn't coming from your gallbladder or won't even be fixed by gallbladder removal.