Gallstones – Symptoms – NHS

Gallstones don’t usually cause any symptoms. But if a gallstone blocks one of the bile ducts, it can cause sudden, severe abdominal pain, known as biliary colic. Other symptoms may develop if the blockage is more severe or develops in another part of the digestive system. Abdominal pain (biliary colic)

https://www.nhs.uk/conditions/gallstones/symptoms/