My 11 mo DS has recently recovered from a week of terrible stomach flu. His symptoms stopped and his appetite recovered at least four days ago but his behaviour seems to have changed markedly. He is normally really easy and happy but he has been crying a lot, had having some quite scary screaming fits - the likes of which I have not seen before. Does anyone else have experience of this kind of behaviour after illness? I have taken him back to the doctor who says there is nothing wrong with him.