For many of my clients who have survived chronic trauma (i.e. ongoing abuse, a series of traumatic losses, etc), complex-PTSD can be an outcome of that challenge. The good news is that it is very treatable -- and there are many pathways to healing. One book I have found very helpful in my training as a clinician is a book entitled Complex PTSD: From Surviving to Thriving by Pete Walker. You can go to his website link here. It is also an excellent and very reader-friendly book for survivors, and I highly recommend it.  Walker talks about the levels of healing emotionally, spiritually, cognitively and physically in the aftermath of trauma, and he addresses how one can enter that roadmap of recovery.