Baby milk intolerance


Has anyone had a bub that was milk intolerant? I had cut out having cereal and anything with lots of milk as bub would be very unsettled for a day or two after. I stupidly made macaroni cheese for dinner Thursday night and bub started being grizzly Friday morning. By Friday night he was having screaming episodes all night and then he got a little better the next day but has continued being unsettled. Each time he's been like this it has been after dairy. Is there any way for a doctor to find out if he does infact have an intolerance? Bub is nearly 8 weeks old