I have a 54 year old mother who constantly believes people are stealing/trying to make life hard on her. At her insistence, we installed cameras and changed house locks but she still claims someone is intruding and stealing from our house. We let her review to video footage to show that no one has entered the house, but she claims someone has hacked the camera and that the camera is not reliable. She believes we are being naive as she has many "reliable" sources who tell her the stealing will continue with more advancements such as hacking. I believe this is an early sign of Alzheimer's/Dementia as I believe the source of this idea that someone is stealing from her is her forgetfulness. However, she refuses to see the doctor saying I am being too naive and that when something gets stolen it will prove that she is right. I am also concerned that if I take her to the doctor, the medication given will have side-effects on her. Can anyone relate to my experience and offer me some guidance/help? Alzheimer's/Dementia or something else?