Hi pistnpositive and welcome to bpdfamily!
Now that today I found your site and have a better understanding for myself, I feel it truly is the first day of the rest of my life.
I am happy you feel this way after finding site

You mention your mother in your post and the suggestion you got from your former therapist to look up Histrionic Personality Disorder (HPD). Do you now suspect your mother might have a personality disorder? Would you say that what you've read about HPD and/or about borderline personality disorder (BPD), fits your mother's behavior?
So why am I still so angry and ashamed for not standing up to her before she successfully isolated me from everyone I loved because I felt healthier not talking to her anymore? I'm 50, alone,homeless with no real idea which direction to go.
Learning to accept the effects of what our parents have done to us is not easy so I understand the difficult emotions you're experiencing now. Could you perhaps tell us a bit more about how your mother treated you and her specific behaviors that you found the most troubling? (like the isolation) You say you're alone and homeless and that is something that really concerns me, especially since you're now also exploring these issues related to your childhood.
The healing is making me sick but I know there must be a good reason why so I am committed.
Could you perhaps elaborate on what you mean here exactly when you say that the healing is making you sick?
I think it's very positive that you've taken this step and are reaching our for support here
