Hard, lumpy stools may indicate insufficient water intake or slowed bowel movements. If experiencing constipation, try increasing fluid and fiber intake. Adjusting your diet might also help with digestive health, especially if you feel bloated.

The stool appears hard and lumpy, with a very dark brown color. Increasing fiber intake and ensuring adequate hydration could help improve digestion. Given your IBS and lactose intolerance, careful dietary management is recommended.