Our 15 year old autistic son also started having seizures this year. We were told that 30% of autistic children starting getting seizures in their adolescence. A. was put on Keppra after the EEG showed seizure activity. The Keppra has controlled the seizures very effectively although A. is acting angrier than he usually does. He is nonverbal so we don't know much about what he is experiencing internally. Hope this helps.