She definitely needs help, although it might be more helpful for her if she didn't have to go through the Baker Act process and do it on her own.

But if you've approached her about it and she just blows you off, it's something to consider. Especially if you believe she is an imminent danger to herself or others.

Talk to her doctor if you can and see if he has any suggestions. That would be the way to go, from my pov.

Take care and good luck,
John