As a child I suffered severe and very regular migraines, in fact I never had to ask my teachers to be allowed home they could tell by looking at me that I was getting one and send me home immediately. My usual cure was to get in a darkened room, take double the dose of painkillers (after I had emptied the contents of my stomach) and get to sleep, as sleep seemed to the only cure for me then. Luckily as I have got older they have lessened in frequency and I rarely get one these days (I hope I am mot tempting fate with this statement). My doctor told me that it is the worst pain that anyone can suffer.
Roger