When I drink sours I throw up. *This doesn't seem to happen with some of the commercial sours I have had like Petrus Oude Bruin, Petrus Pale, Duchess, Rodenbach Vintage, Rodenbach Grand Cru, etc. *However, on three occasions that I had home brewed sours I threw up afterwards. *I did not drink excessively on these occasions, nor have I ever thrown up after drinking beer when sours were not involved. *I am not a heavy drinker and do not drink enough to get drunk. *So, I'm trying to figure out why sours do this to me and am wondering if Anyone Has An idea. *My first thought was that the commercial sours I don't have a problem with have been pasteurized, whereas the home brewed examples have not and so my stomach may not be a hospitable place for the living bugs or bacteria in the home brewed sours. *However, the most recent incident occurred after tasting a Ideasour mash red ale that I made, which was soured prior to doing a 60 min boil and then fermented with a Saison yeast with no bugs added. *I literally only had about 8oz, then woke up the next morning throwing up. *The sour mash problem leads me to think the issue may be pH or acidity in general that my stomach may be responding to rather than the bugs, but then I wonder why I am okay with the commercial examples mentioned above. *Two out of the three times that I threw up after drinking a sour I earlier had french fries, so I'm also wondering if the problem could be a combination of the acidity from the sour and the grease from the fried foods, or something like that. *Any ideas? *