Please please please help. I'm begging. Pych services will not deal with my mentally ill mother?

I really need advice. I'm a 32yr old only adult child of a mentally ill 69yr old mother. I live 2 hours away holding down a job. She is under the long term out patient supervision of adult mental health. Normally she gets on ok, and lives a managable life til this last few months. She lives in her own house. My dad stays every night. He is 70 and he has health problems, stress from her, heart problems, bp, diabetes, and more. He comes to stay with her every night at 7pm and leaves at 10am in the morning. She is very abusive to him verbally but he sticks by her. Hes very good to her in that he does anything that needs to be done practically, looks after her blister medication, pays all her bills. She has day centres to attend and was driving up til 3 months ago. However there is a rapid decline in her mental state. She is now complaining of stomach pains and has been hospitalised for them, every test has been done and they come up negative but she still talks of them and is convinced theres something there that hasnt been diagnosed. She now wakes up in the middle of the night hysterical and crying and demanding to be brought to A & E saying the pain is bad. If you refuse she will go out the door and wake the neigbours in teh dark in the middle of the countryside. I've spoken and wrote to her Consultant Psychitarist. He says her problems are 'behavioural' and they cannot do anything. he says when she acts up ignore her, but its impossible to ignore a 69yr old in teh middle of the night who is hysterical. Yet she will not stay in her own home. She has been under psychiraitic care and hopsitalisd in psychiratic hospital numerous times since i was a baby. She had a good spell of about 10 years but things are really bad since before xmas. I'm speakign to her psychriatic nurse and consultant psychitarist since til i'm blue in teh face. Im worried about her mental state. He says they are not going to admit her to the psychritic unit again ...ever and that its tough bascially. He says shes just 'acting up' because she doesnt want to be alone in her house. Yet she never went this far although she complains of lonliness. Shes turned up in A & E 4 times this past 10 days and the rest she was in hosptial being checked medically. Dad went to collect her last night and she would not go home with him, she went hysterical. She had to be left in A & E all night. No one will heed me and dad and i are getting desperate. Please help & advise. The psych is saying shes just acting up and to ignore her, but thats not possible.