9 month old girl baby with normal birth,post natal,developmental history presented with ? Sudden stoppage of activities while playing with staring look 6 episodes lasting for 3mins with frothing since 1month.no tonic clonic movts.no cyanosis.no preceding or precipitating factors.no loc.no fever.O/E active playful .vitals stable.mild pallor.no icterus cyanosis.systemic exam NAD.lab inv.hb 10 , tc dc platelet ps electrolytes rbs ca normal.
EEG normal.differential diagnosis? Whether to start on AED?drug of choice?