Gallstones are Hepatic (Liver) Stones, they plug up your liver with or without Detox. It is when they get pushed out of the liver into the gallbladder/bile duct that they become gallstones.
Sometimes they can enter the gallbladder and sit there for a while actually growing in size from the bacteria and toxins in the bile, that would be a classic gallstone.
Hulda states that each hepatic stone harbors a bunch of eggs behind it.
See my post, especially the section that starts with "- Without bile ":