abusive relationship

T
I'm a survivor of an abusive relationship. I am an empath... He a narcissist... The perfect recipe from hell. I was with this person for about 9 years until I escaped. The damage is unforgettable but I am recovering from the trauma and rejoicing in my new life. I have started a new job where some of my issues are effecting my efficiency. I am a little defensive and am struggling with trusting the people I work with. In my past life I was not only tourtued physically but I had my identity taken away as well. I sometimes struggle with knowing how to "feel" and I have my walls up. Do I share my past with my boss so he knows how to manage me better or do I just keep working on myself and keep this private so I don't seem incapable?????