Last year in March I got into a fight with my dad and smashed my head against a wall. I have never been the same since and I regret it so much. I keep going back into those memories and try to analyse the hit to try to remember if it was moderate or severe. I wasnt unconscious but my skull hurt so much I thought there is a crack in it. I still have occasional pain on that spot even after 16 months. Add more B vitamins and keep patience. Your brain will recover. Also get your neck checked. I am not sure if our nature of injury would have injured our upper neck. But get it checked by a chiro or a PT.