I've heard or been told that everyone has some sort of seizure very soon after head injury. I know a few people who have had seizures after head injury and recover fine with no epilepsy. I go to a BI group and woman that runs it said everyone has seizure after head injuries tho most are just one off and you never have another. The man who set the group up had seizures after his BI and had to be put on medication incase he had epilepsy but turns out he doesn't. Also a woman who had BI early this year had seizures soon after so cant drive at minute incase she has epilepsy. I was warned there was higher chance of seizures after BI and did read up on it a lot at first. I know early seizures often are one offs but seizures later on likely mean having epilepsy. Luckily to my knowledge I didn't have a seizure but after hearing everyone has one at first made me curious.