It is very normal to feel angry and upset. How could you not? Sounds like there is more going on than bipolar. I would have her tested by a neuropsychologist who than then consult with the family about treatment options. There are a lot of hopeful options available and there is no reason to think you won't get your mom back. Patience and the correct line of action are key right now. I don't know where your mom lives but there is a well-known neuropsychologist, Dr. Angelone, in San Rafael, Ca. You cam also look him up online at the Marin Neuro Institute for a referral in your area. With trust and time you can get you mom back
From,
Dazeofdolphins