I brought up this question a little over a week ago concerning my mother who has had Alzheimers/Dementia for 6 years and is in a Care Center and was doing very well. However, in the last two weeks she is now a totally different person. I have lessened my visits to 1 a week just to check on her well being and my son is getting hesitant about going at all. He cannot believe who she has become! She cannot carry on a conversation with ME at all without screaming at me, mocking me, being sarcastic to me and just outrageous. I am still considering my brothers phone calls to her as being behind this change and the fact that he is encouraging her to speak this way to me by lying to her about me (ie, I stole all her money, I stuck her in this place to get rid of her, I had all her animals killed, etc) and the Care Center is considering it is a good possibility as they have seen him in action before! They are going to attempt to screen his calls if they are legally permitted. However, the possibility of course exists that her disease has just advanced in the matter of 1 or 2 weeks. My question, if this is the case, do they increase her meds and if there is any length of time this stage lasts? Also what stage IS this in Alzheimers/ Dementia Disease?