My mother in law is 77 and she is an alzheimers patient. Recently she has started putting clothes in toilet bowl, eating toothpaste, tearing the clothes she is wearing etc. I cannot move away from her even for a few minutes. She stays awake the entire night on many days. I m not sure she is in which stage of alzheimers. What can I do to improve the quality of her life? Is there anything worse that I should be prepared for?