Yikes! Well, it sure as heck sounds like you and ultrapasturized cow milk do not go together!
I don't know if it will help specifically to your problem, but when I get into something that doesn't agree with me, I saturate myself with lemon juice and chlorella. The lemon will help clear your liver so it can handle the expulsion of the toxins in the food that are bothering you, and chlorella really helps with the aftermath of a food mistake - it seems to clear brain fog way faster than just waiting for time to take care of it. I have never had a reaction like you are describing, though. I usually just get blurry-eyed and then fatigue sets in, so I can't be sure it will work, but it sure can't hurt.