39 male bowel movements have changed for about a week now not going as often stool test was normal and xray also feeling full not sure what caused it?

Stress? Add fiber?: Fiber, of both water soluble and water insoluble variety, provides health benefits. Fiber accelerates how quickly food transits through the gut. Fiber adds bulk to stool and improves bowel regularity. Fiber can be used as an adjunct to weight loss by filling you up without excess calories, and in so doing restricting fat intake. Change in bowel warrants medical evaluation, esp. if persistent.