Sir my grandmother is having memory problems from past many months , like she often forgets about that she had her meal and asks for them again and again , there have been episodes of her forgetting about relatives that who are who and that her husband is no more , and there also have been episodes when she went into her childhood and asked about her mother not believing that she is no more, this meal forgetting problems are almost daily , other occurs quite rare, once or twice a month , on making her remember or telling that she had her meal she takes time to believe in that and regarding her recognizing power it is weak . Some days she is absolutely fine remembers almost everything . Sir plz guide regarding this.