I don't recall ever having one while or after eating chocolate (thank the gods!) The only "food/drink" trigger I've noticed is coffee in the morning, and even then, it's certainly not every time, just occasionally. I just had one, in fact, sitting here eating nothing. Turned on the ceiling fan and grabbed my bottle of cold water out of the fridge, and all's well now. Most of mine are at night in bed rather than during the day.