Thanks for your post . She has behaved like this many times but she usually does it to my mum . She lives with my mum but my mum is struggling to cope with her behaviour and she feels like my daughter is bullying her and sometimes she feels scared that she might do something really violent. My daughter is not living with me because of my mental health but I've always had lots of visits with her . She started therapy but she didn't like it and my mum didn't like the things that the therapist was telling her i.e telling her that she doesn't have to tidy her room . We are trying to get her mental health support . She deffinately has some kind of problems .