DD2 has been toilet trained since just before xmas. Has done so well with hardly any 'accidents' BUT.... She had a tummy bug which left her constipated which obviously caused her pain when she went to toilet. Now she will not poo until her body takes over and it happens naturally!! Which will be just wherever she happens to be at the time. It can take hours for her to go you can she is holding on to it. She wiggles screams cries holds on to her bum telling me it hurts... She is obviously in a lot of pain!! When she does go she gets so distressed screaming and crying. And there is frequently blood in the poo when she goes. When she has gone she is totally back to her normal self until next time..Docter say this is normal and quite commomn although i have never heard of it before and is distressing for me and my dh to see our dd to be going this.