Hiii Migraine has several etiology Rather than its etiology u have to concentrate over its treatment plan Migraine headache is episodic and its treatment based on severaity of attack and no of episodes in a mnth Medicines that has been given to u is not appropiate Y u have been on eptoin ?? It has nothing with migraine Vasograin is appropiate If u have migraine inspite of taking that much medicines than shift to following line of treatments Flunarizine 10 mg in morning Divalproate sodium 500 mg at bed time If needed than add proparanalol 40 mg sustained release prepaeration Regular healthy food n sleep will helpful Do exercise regularaly Thank u