DS started school today. Last Thurs to Sat he had upset stomach. He was fine for most of day, but then would have to rush to toilet 6 or 7 times in space of hour or so. Poos v watery and yellow. Cut back his food as much as poss on Sun and limited Sun and Mon to plain white bread and plain biscuits. Thougt things had improved, but teacher said he went to toilet about 7 times this morning. And he said his tummy a bit sore and had pooed 3 times. Teacher happy that it's prob at least partly nerves and happy for him to go back tomorrow. Is there anything I can do to help him? Anything really gentle I can give him to "block him up" a bit. Don't really want to mess around with his system, but don't want him getting any more worried than he already is about having an accident. Any thoughts gratefully received.