She has been diagnosed with Dementia. She had fractured her L1 last winter and spent time in the hospital & rehab. She was acting nice and cooperating with the physical therapy until last week, when she turned nasty. She gets up at night and roams the house and goes outside without her walker. She used to raise kittens and has had many kittens and cats through her life time. She is now looking for her cats from 30-40 years ago. She accuses that we took them and killed them, that she is going to slice us up like we did her cats. We don't know whether to take her seriously or not. She is so angry and not in reality. The doctors said he can't give her anything to calm her down because she has kidney cancer that looks like has traveled to her stomach. She also has hardening of the arteries for a long time and congestive heart failure. She is 89 years old. I am 71. My youngest sister also helps with the cats and she does all the laundry. I need advice on how maybe I can get my mother calm and responsive again to our care.