Thanks for sharing ladies, it's been really helpful reading other's experiences. It sounds like there is a broad range of severity and reactions, as well as 'prognoses'.

Poor little man has been really squirmy and uncomfortable all day. Barely slept and has had a couple of serious bouts of screaming. Very unlike him so I'm becoming more confident that it was the cheese I ate on Thurs. Still considering whether to get it further clarified / confirmed medically if it's possible. I need all the evidence and accountability I can get to make me stay off dairy... it's gonna be tough for this little cheese-addict.