The postdrome phase of migraine ie. the time between headache resolution and feeling completely back to normal, consisting mostly of fatigue and cognitive disability is an underappreciated contributor to migraine symptomatology.
Disability from migraine is substantial. It is estimated to be the sixth most disabling condition worldwide (Lancet 2015;386:743).
According to a recent study, even after the headache passes, sufferers are not able to perform optimally at work or in school for at least several hours.
Neurology 2016 Jul 19;87:309