It's been 15 years now that my mother's behaviour has changed drastically . She has these imaginary thoughts of someone ( their own relatives ) spraying some gases on her and experimenting with her body . She sleeps by closing the door and no one letting in . She's always aggressive and rude even to me ( her only son ) . I am totally banished from inside to see such behaviour . She has attempted suicide in front of me twice now . She says that someone has inserted chips in her body and everywhere is camera inside our house . The symptoms have increased a lot over these years and she's blaming me and dad too for these problems . Please just tell me what this condition is and what should i do .