I feed my puppy 4 times a day. 7, 11, 3,7. I only give the amount recommended for her. I also give her water with and between meals. The problem is she poops like 3 1/2 hours after she eats! Is this normal? I thought puppies were suppose to poop within an hour. She is only 8 1/2 weeks. Is she constipated? What can I do to help her?