Differentiating Headaches

How can it be that I get a headache from half a bottle of white wine when I get none from a cup of ‘Feuerzangenbowle’, 2 glasses of red wine and 4-5 (stopped counting) caipirhinas?

Friday was the company christmas party. Friday was also MourningDragon‘s company’s christmas party. So first I went to one than the other.

Saturday no headache. Today headache. But that may as well come from caffeine deprivation yesterday.

Maybe the headache today is cumulative. The headache damon simply waited until the data/alcohol reached a critical mass and then started processing.