He has fits of extreme anger over the smallest things. He leaves drawers and doors open and has become very forgetful. He has withdrawn from most activities and will only travel to see myself and my brother (we live in different states). I don't even know how to get him diagnosed. I suggested to my mother to keep a journal of his behavior so when she goes to her doctor she can show him (they have the same doctor). His poor behavior is displayed at home right now. When they come to visit he seems like his old self. I read that this could be showtiming. Any suggestions would be greatly appreciated.