I am 27 years old male having functional bowel disease after undergoing Endoscopy , colonoscopy,  USG  . So, I take only home made food and high fibre diet , not taking any meat  performing excercise , yoga but still first part of the stool is not coming easily and only first part is little bit dry but then very soft and pass easily and one more thing is when I go to toilet with urge at first 2-3 times flatulence pass . Why only first part of the stool is hard and then no problem ???