My four year old son has had problems with constipation in the past. He started a fever last Wednesday which was unable to be diagnosed at urgent care. They did a rapid strep and checked his ears. He has been unusually tired and has slept a lot the last two days. Today he had three bowel movements in his pants, which is unusual, that were dark brown and sticky and pasty. Could this be related to fatigue and fevers. Does this indicate bleeding from somewhere?!