[migraine] a belated realisation

This evening I am having A Headache. It's an annoying headache; it's definitely a distracting headache; but it's "just" A Headache. No other symptoms that I'm noticing.

... except that it's Exactly The Right Time For A Migraine, and yesterday I had a bunch of migraine prodrome symptoms. (Being Too Warm. Wanting to close my eyes a lot. Nausea. Overwhelming despair.)

I find myself Wondering whether my regular menstrual migraines actually started on 1^st January 2021, or if that's just the point at which symptoms tipped over into very obviously photosensitive migraine. At that point I was on continuous acute pain relief, and it is slowly dawning on me that An Annoying Headache with no other symptoms distinguishable from background noise (anxiety, depression, thesis-related stress, ...) is the kind of thing I'd have just merrily ignored, and for that matter that I'd still be ignoring if I weren't now Keeping A Headache Diary...