I have heard of Dissociate identity disorder, i also have talked with several people that claim to have these multiple personalities. you do not give her age, or say what age this started, so you evidently know just why she has them, and when it started, i wish that i could say something that would help you, i do know of this one book that this one author wrote, she was abused many times as a child, and that is what started her on her personalities, she became a succesful person i saw her on a tv show many years ago the book was Hear the children cry, but i am not sure this book will help you as you may have a completly different scenario with your daughter i am a mother, and my girls are grown, but i worked with people 40 years and i do know what you are going through and i do hope she comes through this ok i am not trying to be nosy as this has always been interesting to me how many personalities does she have, please accept my apoligies if my questions have upset you i was just trying to understand her better, and i wish the best for you and your daughters I have read a lot of books but i cant remember the names of them you might check at the public library if you feel the need to unload please PO me i am always here and have a big shoulder jo ps as you have noticed i am not so good at typing as i never took it