hi doc:
I have an elderly sister living in florida with her 50ish son. He came to live with her approx 2 mts ago because he was having marital problems. Any way he started to treat her disrespectfully and has basicall
taken over her apartment. Telling her what she should watch on tv, turning off lights even tough he knows she only has partial sight.. He constantly berates her. She tells me that he is a different person when he is with other people. If he is bi-polar , is it possible to change behavior from one person to another or is he just a control freak?. She is very anxious, has loss weight and on egg-shells