Yea, and it's not just memory and reasoning skills and other skills that disappeared, he also changed moods. He used to be quite introspective but now he can't look inside at all. He can't think and then react either. He reacts instantly. He is either sort of cheery or very cranky. When he is cranky it's about ridiculous things like someone forgot to buy him a Mars bar, then he yells and throws things and acts like you'd expect from an upset 5 year old. He always thinks he has right to things. He used to be very mellow and humble and putting others first. Now it's all mememe. It's so unlike him.