Apart from the usual crying when I peel an onion, I get a headache which feels like (I imagine) a mild migraine. Has anybody else had this reaction to onions? I peeled an onion two days ago, got the headache within hours and still have it, despite taking 'normal' pain relief medication. My eyes are very stingy and light-sensitive, and my head (especially base of skull) is tense and uncomfortable. I've noticed this previously too. Anybody know anything about a possible relationship between onions and headache? Thank you.