I'm a 29 year old male who has started experiencing changes in bowel movements about 2 months ago. Basically I am having narrow stools that are about the size of a pinky finger that are dark in color. Prior to this I have had no bowel movement trouble at all and no other medical history. I also have some slight abdominal cramping after bowel movements and at night and in the mornings. The stool doesnt seem to be hard or watery. I am also having some fatigue but I have a new baby in the house so I also dont get alot of sleep anyway. Some days I may only have 2 bowel movements in a day but other times I may have 4 in 2 hours. They are all the same though. narrow and dark. I am slightly concerned about colorectal cancer but my only hope is that Im too young for that. My dietary habits are not good as I dont reallt eat any fruits or vegetables. Mainly meat and potatos I guess. Any thoughts on this would be appreciated.