Yesterday I found myself with a headache of unknown origin. Ruling out things like alien probes and exotic diseases, I was left to ponder more mundane sources and it occurred to me that one thing had changed over the last few days: I had not had any cola to drink. I only drink sugar-free soda, but I do imbibe on a pretty much daily basis. Our supply was low, so I’d switched to flavoured water or (gasp) just plain water.
And then the headache. Because while the soda is sugar-free, it is not caffeine-free. My body was probably reacting to minor caffeine withdrawal in one of the most common ways–a headache.
I’ve had soda since and no more headaches. This is good and bad. Good, because headaches suck. Bad, because I obviously have a caffeine problem. I will take corrective action soon™.