Denise,
This question has been addressed in our Ask the Clinician column. Please read Can a migraine cause a seizure in a person that does not have epilepsy?
Sounds like it's time for a new doctor too, and a Migraine specialist may be the best choice for you. Take a look at the article Migraine and Headache Specialists - What's So Special? If you need help finding a Migraine specialist, check our listing of Patient Recommended Migraine and Headache Specialists.
I know you're going through a rough time. If you'd like some additional support, come join our discussion forum. You'll need to register again once there because it's a separate membership database, but you can use the same member name, email address, and password that you used here. You can find our forum at http://forums.healthcentral.com/discussion/migraine/forums.
Good luck,
Teri