In the last few years several cases of headache as sole manifestation of an epileptic seizure have been reported and the term "ictal epileptic headache" has been recently proposed to identify an EEG-recorded epileptic seizure with migraine/headache-like features. Among the potential practical implications arising from these clinical observations, there is the urgent need for a revision of both International Classifications of Epilepsy and Headache disorders. We discuss these topics and provide additional comments about the physiopathological links between epilepsy and migraine.