My daughter will be 3 end of the month. She's been potty trained for a while, must be at least 8 months or so. She's completely dry in the day and only has her nappy on when she has her nap & at night. Just this week, she has decided to have a poo in the middle of the night. She would wake up crying, because she's done a poo, etc. What would be causing her to have a poo in the night? And more importantly, will she do this if she's out of nappy? Poo-ing in her knickers will not be a nice sight!! haha... pls help!!