Grape allergy: One of the unwanted side effects of wine

It could be an allergy, rather than a hangover, causing those unpleasant side-effects. While hangovers are an inevitable punishment if you overdo it with the vino, sometimes unpleasant side-effects from a glass or two are down to something a bit more unusual.
We’d all sometimes like to blame our morning-after-the-night-before state on a ‘wine allergy’, but for a very small amount of people, an allergy to wine is a real (and inconvenient) truth.