My DD is 3 yrs old. She is trained for peeing in the toilet. but for poop she needs diaper. For the past 1 month she is holding her poop, whenever she has the urge to poop she cries and holds and finally goes on the 3rd or 4th day with so much crying and pain. I took her to Dr who gave Duphalc syrup. BUt still she is managing to hold her poop. i give her fibre rich food and enough water. I feel so bad to see her crying. She still stands and go poop. Kindly advise how to make her go everyday without fear.