I read your request for information and I wondered if the real problem was not depression, but post traumatic stress disorder causing depression. I say this because of the nigthmares she is experiencing. I work with a lot of clients with PTSD and given her history it could be a possibility worth exploring. Depression and anxiety disorders are common in these people as well as other psychological problems, particularly in chronic cases.
I also need some advice on the treatment of PTSD using a gestalt approach, I usually employ a solution focused CBT approach focusing on the reduction of flashbacks and tackling avoidance, anxiety and depression. Does anybody have any experience of these clients and can point me in the right direction? You can contact me at philipirvine@usa.net