Is gallstone pain always strong or no !?

It depends: Pain from gallstones can be a bit tricky. It can by dull or sharp, in the right upper portion of the abdomen or in the middle upper portion. Complications from gallstone disease can be serious. See a doctor.

No,highly variable..: No, gallstone-related pain highly varies depending upon its irritation to gallbladder, its degree of blocking bile drainage through bile duct, and its related inflammation.Infection. In fact, all life event represents itself as a pattern of full spectrum, from almost feeling nothing to extreme severe intolerance. If in doubt, ask and talk with doctor in charge. Best wish ... Always.

Gallstone pain.: Gallstone pain does not have to be severe to be consistent with gallstone pain. But it does have to be colicky, which means it would feel like something is intermittently squeezing-and-releasing in your right upper abdominal quadrant. Hence the term biliary colic.