I take care of a lady with ms. She has not been diagnosed with Alzheimer's. I have been there for 5 months. She forgets who I am and goes off on me.. I have been accused of having an affair with her husband and cursed out and called names... today she was fine, took a nap and woke up. She yelled at me threatened to call the cops saying I wasn't supposed to be here and yelling she has no clue who I am.. she remembers everyone but me. I was in tears, any advice?