What Causes Recurring Seizures?

I have started having seizures in the last 2 years I have had 2. the most the last on 2 weeks ago the first one over a yr ago. my Dr. said it is like shaken baby syndrome or a critical accident which is a result of severe beating from my Ex. Husb. I am on Depakote 2 in the a.m. and 1 in the p.m. 500 mg. I also have migraine headaches. I had a funny feeling this time, with a headache then my head tingled and my throat felt like it was constricted. My vision was impaired. I pulled into CVS called my boyfriend for help and knew not to drive. I could call on my I Phone from memory of my favorites since I couldn t see them. when he arrived I remember it, but lost blacked out before or during him getting me in the car then I went to the fire station and remember next them asking me questions and I could answer. I chewed my tongue and for 2 1/2 weeks couldn t speak well or eat on that side. the current program is not working and my Dr s office mgr is never in , I have had a headache every day and nobody called me back to help, so I cancelled my appt today and will see my Primary care Dr. on Tues next week and get a referral for someone who will hopefully help me in Birmingham....... I am at a loss and very scared .......I don t want to Die