The only reason why I'm asking is because I've noticed that DS2, who is 11 months seems to wake more when he has had yogurt/cheese in the day but he seems OK with cooked dairy products e.g. cheese sauce and formula in porridge, his milk feeds are all breastfed. I know he can't have celery as I cooked some in a chicken casserole once and he was up all night with tummy ache and wind. Just wondering if its a coincidence that he woke less when I didn't give yogurt. He doesn't have any skin or digestive issues other than being a bit windy some nights. I know to find out properly we should both go dairy free for a while but it seems a bit daunting to do that!