Who knows? CBD oil in very strong concentrations have been used for one type of childhood seizure disorder. Migraines can be caused by different things. Usually, it's a vascular problem, where some kind of stress causes constriction of the blood vessels and when they reopen the large ones near the head open first and you get the migraine. It doesn't sound like they have yet found the cause. There are many medications used for both seizures and for migraines. I'd probably at this point talk to the neurologist if he hasn't explained what he found well enough, and if it doesn't sound like he's your guy, see a better doc. Peace.