transform,
you are my lakota woman. (i hope you dont mind that, if you do, i will stop)
anyway, when in a ptsd meltdown all kinds of bad behavior is expected, your amyglydia is in control. so yes, some actions will look like NPD. You are trying to treat your PTSD, she will not likely ever seek help for her personality disorder.
She does not and will not ever see her flaws, you are digging them up, exposing them to sunlight and watching them shrivel up and disappear.
Keep doing the next right thing, one step at a time.
Learn to protect yourself from her until you can make a change, and you will.
I have all faith in you doing what you need to take care of yourself.
Beth