I despair. We started potty training 2 months ago and he would have good and bad days. There were even days where we had no accidents. And then last week it's taken a turn for the worse with him reusing to even sit on the toilet and choosing to wet his pants. For the last 2 days es been holding in his poos. I can see he needs to do a poo and he makes grunting noises but then he won't poo in his pants or poo when taken to the toilet. I'm going all out with the praise and rewards- we have a star chart etc. and I don't make a big deal about accidents. Help!!!