I was told by my primary and read that you can definitely suffer brain damage from having meningitis. I myself have some issues too and I'm 2 months post bacterial meningitis. My issues are problems with memory, concentration, simple math and numbers, reading and having adult convos. Also I hallucinated really bad for like 3 weeks after because this all started with an ear infection in my right ear and that is the side where that is processed at. I was told the first few days in the hospital I was conscious all the time but I was asleep and didnt hear anyone I was there but not there.