My grandpa is 80 years old. I believe he is showing some signs of sundowning or something. He won’t answer us, we can stand right in front of him and speak to him but it’s like he just stares right through us. Sometimes we’ll ask him a question and he’ll look at us and say “what?” Then go right back to staring through us or away from us. I’ve also noticed that when using the bathroom, he seems to try to walk away without pulling his diaper and pants up which has led to us being there constantly to be sure he does. Towards dinner time it is much worse. He also becomes angry around dinner and even asking a question causes him to raise his voice and get angry when he finally will answer you. Whenever I bring this up to his neuro doctor they seem to think that if he can tell them his birthday, the year and who the current president is then all is good and well in their eyes. Any advice on any of this?