Me, on the other hand, have diabetes and celiac disease....Hmmmm----
Perhaps OP's reactions may be genetic, to some degree.
Or, like everything else, 'It (milk) ain't what it yusta be'.
Personally (so far); when it comes to milk (or dairy products in general) I'm
pretty much BombProof. (No ****).
One day; I tried experimenting with some sour milk & have since turned it into all
manner of concoctions. I've used it to make cheese, as a yogurt 'extender', & have
employed the resulting whey in all types of cooking & baking.
Admittedly; I DO cook like an 18th Century Frenchmen...potentially.
But years later; I have NEVER had any digestive issues resulting from soured milk
products- even after some 'interesting' results of some very questionable lactation
fermentation experimentation. I even give to my dog...who's almost 18 years old.
I've used whole milk, that lame watery stuff, pasteurized, & ultra-pasteurized with
nary a cramp nor fart. So; It's not for lack of tryin'.
Might be genetic, or somethin'.
I just.....don't know.
...OP's 'issues' might also be due to a change in gut flora, a new 'script (like anti-
biotics?) a diet change, or...some other crap.
I just...don't...get paid to know/care ;-]
Maybe I'll mail ya some homemade cheese.
Works for me.
...so I am just one more food related illness away from not being able to eat ANYTHING.