My mom recently (1 week) moved into an assisted living facility and was doing great Sat. and she told me she was doing her physical therapy.Well all of that changed today. I was there and my mom was yelling at the staff, refusing to do any physical therapy(she lied to me about doing her physical therapy), and when I asked her why she wasn't attempting to do any physical therapy, she told me that I was the problem and to leave her alone. I have 2 older brothers and never had any issue with my mom. Always either called or stopped by to see her. I am not sure who to contact because this is really hard for all of us. She doesn't want to be around any of the residents and will not leave her room. It is like she has given up on living all together.
I wouldn't assume that she is lying to you, because she may not remember what she did and she doesn't know that she's lying. And because what they are experiencing is so strange and frightening, she may be too afraid to come out of her room. Dementia may cause you to retreat, because you don't want others to see how you are confused and not able to perform some tasks. I'd try to figure it out, first, so you know what you are dealing with.