She waits until I leave the room and she goes into the kitchen and gets snacks. She eats 3 meals a day which I prepare and I give her an afternoon snack. When I have to leave the room to get laundry or go to the bathroom she goes into the kitchen and hides food in her pockets or a napkin and when I am not watching she eats it. She thinks I don't notice but I do. I haven't said anything to her as I don't want to upset her. The reason for the concern is she is spending more time in the bathroom and I know it has to be upsetting her stomach. Can anyone please tell me how to handle this?