Just encountered this thoughtful article by blogger Scicurious, bringing together her work as a researcher in physiology with her own experiences of migraine. The postdromal symptoms she describes here are likely familiar to many (they definitely are to me).
Her call for more research on migraine in general, and of postdrome in specific, needs amplification. Lots of promising leads cited, not so many comprehensive or longitudinal studies funded. The scientific community needs to do better for people living with migraines.