Migraine is a complex disorder of the nervous system with some well described clinical features of the attacks, such as unilateral throbbing pain that is worsened by physical activity and associated with sensory sensitivity, typically photophobia and phonophobia.¹ Willis thought it was a disorder of the cranial blood vessels but the current view is that migraine is a disorder of the brain.² Migraine has many secrets to uncover, and in the paper by Young and colleagues,³ in this issue, unilateral motor symptoms that do not easily fit classical descriptions for hemiparetic weakness are described (see p 600) …