My ds is 2 1/2 he has been toilet trained since march and has done very well with it. He is also out of nappies during the night. The last week he has done nothing but wet himself. When i ask if he has wet he just repies yes he does not even seem bothed. I dont know what to do, i seem to be changing him all day. We had a baby 10 weeks ago and i have wondered if this has anything to do with it but he has only been doing it the last week.