Yes, been through that myself. Had to flush for a couple of months before I got rid of the blockage. I discovered that using one of those handheld massagers firmly against the gallbladder running it from under the right breast diagonally to the belly button help release trapped sludge and stones. Also used it over the liver massaging from back to front to help dislodge stuck stones. Malic acid, chanca peidra, and gold coin grass can be helpful if you can deal with one of them.