Red wine has started making me ill - I get a terrible headache which radiates from my jaw if I drink it (sad as I love red wine).It only takes a single glass for this to happen.
Weirdly, when I drink "old" red wine - the expensive stuff I don't get a headache. I was treated to a fancy dinner recently and the wine was 25+ years old, I drank half a bottle and no headache?
Based on my own anecdotal experience I draw the conclusion that something must have changed in wine production methods.