Mum Comes Home

Mum has been living at my place for several weeks. During the day, she is mostly quite good, but in the evenings and at night she can be awful. Tonight I thought she was in bed but I heard something bashing on the wall. I went in and she was standing in the corner of the room banging on the wall. I asked what she was doing - she replied, "Every night a woman gets into the roof and tries to get into my room." I am really not sure what to say to that. I have kept her off psychiatric drugs until this point in time but I'm starting to think something very strong is in order. The ethical problem is, all these drugs shorten your life. Alzheimers is so much like schizophrenia.