I called the docs on my own sister
Is she ok? Why did you call the doctors?
She's sick and brainless, I hate her for this.
Even though your feelings are not in a good place it is good that you got her help. Maybe it will help your relationship with her.
Why should I? Do you think she will like me for this? It has been over for years. I just want to remind her that it's her own problem.
Mental illness can be quite debilitating for the both of you, and I'm glad you are choosing to see doctors for her, and possibly yourself. The both of you need a better relationship, and patching up yourselves first can help you later.