I tried raw milk kefir too. I don' think my body appreciates dairy either. When I try water kefir and kombucha , I do seem to get a reaction to the vinegar (or sugar content). I think its the vinegar since I do ferment kefir/kombucha until the sugar has pretty much converted (I have Ph strips to measure where I am). I don't know if my methylation snps are defining how I react to vinegars? I know I get sugar reactions with other stuff like ice cream/cookies etc. And I get cafeine reactions too. I am toying with the idea of simply eating the water kefir grains. Any comments?