Having had extensive investigations done recently and two gallstones found (1 of 0.5cm and 1 of 0.6cm), the medical team and surgical team have said to me that the only time gallstones cause pain is when the gallbladder is infected (which would have inflammatory markers in bloods - I don't) or when they get into bile duct (which doesn't appear to be the case for me at the moment). So they have ruled out gallstones as a possible cause for pain radiating from under rhs ribs to chest and abdomen. So when you guys say a 'gallbladder attack', what do you mean exactly, or how have your doctors explained it to you? Have you had infection/inflammatory markers in bloods?