For sufferers, a migraine is more than just 'a bad headache'. This neurological condition doesn't just cause intense, throbbing head pain -- often on one side of the head - but many other symptoms, including brain fog, fatigue, nausea, flashing lights or 'aura', and sensitivity to light.
In the UK, one in five women is affected, and there are several causes - one of which is hormones. More than half of women link migraines to their period, but taking the contraceptive pill and menopause are also triggers. Sound familiar? Here's what you need to know.