I have h. pylori and for the past year im constipated or my stools are green or yellow and dark brown why?? should i be worried?

Constipation: H pylori should have little effect on your stool consistency. Functional constipation is very common, and consider increasing dietary sources of fiber (vegetables, fruits, whole grains, and nuts), as well as increasing water you drink throughout the day. Sometimes a stool softener may help. The color of stool you describe is quite normal. Alarming colors of stool are black, white, and red