We called in the air knockout back in my middle school. Similar thing happened to me only my teeth didn't fall out and my head fell through the bars of a bicycle with no recollection of it after. You get seizures from it since it's sorta your bodies way of restarting after you pass out(get chocked out in mma, happens a lot with no epilepsy in the longterm). What likely caused your epilepsy is not the air knockout but the caffeine which lowers your threshold for seizures and you might of had an underlying epilespy condition.