Is it possible that migraine skipped a generation, for example: my dad's mother used to suffer from migraines whenever she looked into a bright light. My dad never had migraines, but I have the exact same migraine symptoms and triggers as my grandmother. Therefore is it possible that the migraine genetics were passed onto my dad (although he never had migraines) and that he passed it onto me? (P.S. My brother has idiopathic occipital lobe epilepsy with secondary generalized seizures and after a seizure he also has migraines, but the rest of my family doesn't have migraine.)