I am wondering if I have suddenly become lactose intolerant. It is something which has become bothersome for me in the last 2 years. Anyways, I can stand most milk products. I can drink warm milk fine, can eat yougurt, and cheeses. But what affects me the most is Ice cream and cold milk. I drink those two things, and I have bloating, and diarrhea. Does this mean I'm lactose intolerant?