When Past Traumas Are Triggered

I am in the process of healing my body from sexual abuse trauma. My mind is like, "are you for real dud? You've done a fk tonne of work on this matter and mentally feel really good about it!", however, my body needs some attention and healing. When my step-daughter's are here and I hear them walking down the stairs on down the hall, my body literally freezes. My mind logically knows it's them but my body is right back in the moment of being sexually abused. This has been happening interm...