My DS is 7 and has a bit of a funny tummy. We give him lactobacillus bifida which helps him a lot but he seems to react to some foods or germs or whatever (I.e. occasion loose stools - maybe twice then fine). He has had loose stools today - once at school, then a very small amount at home once. He is perfectly happy otherwise. Is this diahhorea? Should I keep him at home tomorrow? I feel stupid that I don't know....does one case of loose stools count as diahhorea? How do you know if it's diahhorea or food disagreeing with him? Is there some sort of rule? Fwiw, I'm going to keep him off tomorrow but just don't know if I'm being ultra conservative...