My four year old has been holding his poos in for quite some time he runs around untill he dosnt need it anymore he sits on the toilet an jumps straight off he screams and says it hurts doctors gave him movicol and said make him sit on the toilet daily asif I havnt tried everything I could I just cant get him to go no matter what I try any advice as hes waking of a night and running round house crying because he need a poo but simply dosnt wont to go I also have a new born so this is gettin really tiering x