How do you know if your infant is lactose intolerant?
My DS is 8 weeks old and I just switched him from Laco free to Carnation (in hopes to save money) and he's been really squirmy about 2 hours after he eats (drawing up his legs and tooting a lot). How do I know if this is due to the lactose in Carnation? How long should I wait to see if this continues? Please help! Thanks!!