My dd (5) has been lactose intolerant since weaning. We have learned what she can have/not have and as a result have not had to cut out dairy totally. However have recently discovered she is having normal milk at school and last week she had terrible stomach cramps in evenings, vomiting, runny poo and very bubbly tummy - I could hear it from my bed room! We have cut out dairy for a few days to let her tummy settle, but she is still off her food a bit, still a bit runny and is burping a lot. Any idea how long her insides will take to settle?