You will know when you are expressing authentically because you feel like an authentic magickal creature spreading their wings with a deep sense of security, depth, and confidence.
One of the things I learned in therapy was that PTSD likes to spike its head when you least suspect it. When everything is safe, life is happy and we find ourselves in a good place. Some of us awaken or find ourselves reliving some traumatic experience that could have happened over 20 years ago. Some of us have unexplained anxiety, depression, or some other combination of uncomfortable feelings.