My 10 month old has a very runny tummy and was in a lot of pain this morning (calpol eventually did the trick and he went back to sleep at 6am). This is the second time he has had a very runny tummy - first time was at 6months. I am worried as I am back at work and nanny does all his cooking (I went back to work when he was 5 1/2 months old). Am I just being a worried mum, do kids just get diarrhea every now and again or should I be worried. Nanny is excellent so dont want to jump in and blame her cooking but I am worried and upset. It is times like this that I hate working and just want to be with my boy. He is my first so I am not sure if this is normal or not - or just teething. But his tummy is sore so I think not teething? (he was arching is back earlier). He is otherwise really well and not an ill baby at all (no colds etc.). Advice really appreciated.