I don't know if this the wrong place to post this, let me know if it is.
My accent got different after my first seizure, not super differently, but enough people mock me for saying things weird. I didnt think about it since there are some people in the town I grew up that had a similar accent so i was assuming thats where I learned it inadvertently. But like, that kinda doesnt make sense since I only started speaking like that when I was 15, didnt live in the same place anymore and after I had started having seizures. While I never really got looked at for brain damage, I also forgot an entire years worth of math, had no recognition of it at all. And like I said its not super different, it went from generic western american too american southern. I know foreign accent syndrome is rare so what else could possibly be the cause?