During a typical gallbladder attack a stone moves out of the gallbladder and gets stuck in the common bile duct. Yes, the the expression "gallbladder attack" does not quite adequately describe what is happening. There may also be inflammation of the gallbladder itself, which is not typically referred to as an attack, but as gallbladder disease. This can also cause pain, but it is more chronic than the spasms from an attack.