I'm 12 weeks pregnant and since getting pregnant I get diarrhea if I eat dairy. It's taken me 12 weeks to be 100% sure that's what's causing it because I've never heard of anything like this, and I didn't want to cut out dairy while pregnant because it's such good nutrition. I have already been having lactose free milk for years (but normal cheese etc. as that's low in lactose anyway). But this is worse than any reaction I ever had with lactose before getting pregnant. The diarrhea even happened after half a cup of lactose free semi skimmed milk. It happens equally with milk, cheese and yoghurt.
Just wondered if anyone had heard of anything like this!