I had the opposite experience! Well, minus the pregnancy part lol. When I was a kid, straight milk was the only thing I ever reacted to, and it just made my throat feel kind of "gummy" but it didn't hurt my stomach. After college it started to hurt my stomach if I had too much "creamy" dairy, like yogurt, milk, dairy based sauces, etc. but hard cheeses and limited ice cream were fine. Well wouldn't you know after the first night of my last Disney trip when I went to the dessert buffet (LOTS of dairy based options here, but hadn't really been an issue for me so didn't note lactose intolerance on my reservation) my body has decided that basically any dairy is too much. Which sucks because I freaking LOVE cheese! lmao