I use Clue, a menstrual-cycle tracker app, to see when my PMS days are likely to be. My migraine days if I have them tend to be the first PMS symptom I experience so I wasn't getting any warning previously. But now I know it's coming; I make sure I get good sleep, eat small regular meals throughout the day, take vitamins, lots of veggies and especially greens, plus plenty of water — the usual stuff. But knowing the days to really pay attention means I can prevent as far as possible. —April Adams, Facebook