Does epilepsy and migraines happen together?

Migralepsy. Yes, there is an increased chance of the two disorders occurring together.
Yes, but unclear. While epilepsy and migraine would seem to be separate conditions, there is a small but statistically significant increase in risk for developing one if you have already been diagnosed with the other. The mechanism for this is unclear, but is thought to be related to abnormal excitability in the brain.