So sorry to hear this. I understand how you feel, a bit. I also was involved in a car accident in 1980 in which I received head injuries. I hit my head on my stearing wheel - it left a bruise where it hit.
Soon after this accident I started having these "seizures", although I really didn't know what they were. I chalked it up to working 45hrs a week while attending college all day - just plain stress and no sleep.
My mom finally made me see a neurologist who preformed test which diagnosed me as having seizures. I don't have grand mal type seizures. Mine are more cronic-klonic partial-complex seizures. Neuro immediately placed me on phenobarbitol. Years later [and several neuro's later], my current neuro has me on felbatol and keppra. This combo seems to work well. Seizures have been downgraded to "simple seizures" with occasional "partial complex" (usually oround monthly period).
Good luck and we all hope they all [seizures] go away!