C.C.
Hi E. - first off, congratulations on your new baby girl!
What you are experiencing is very normal and more common than you would believe. It takes a long time for our bodies and our minds to process a trauma like the one that you experienced. It happens not just with baby deliveries but also car accidents, major surgeries, even a just-missed situation - all kinds of things involving a trauma.
It's very normal to grieve about what could have been. I experienced the same thing with my difficult delivery (34 hours). Even though it wasnt life threatening, the experience would replay in my mind and the feelings would come to the surface. I even had it after a sledding accident where I narrowly missed a major injury. The thoughts of what could have happened were scarier than what really did happen. I have a chiropractor friend who referred me to a counselor that specialized in treating emotional trauma through EMDR and some other "mind-body" clearing methods. My friend also suggested I pick up a homeopathic called "rescue remedy" at the natural foods store. Both helped amazingly well. I use the rescue remedy even now - especially when I find that I have those annoying intrusive thoughts.
It will get better. Dont be too hard on yourself for the feelings. When you find yourself going down that path, reign in your thoughts and remind yourself that what could have happened doesnt matter the most - what is real is that you are healthy and your daughters and family are healthy and you are all together.
Here's one visualization that really helped me. When the waves of emotions come to the surface, you can either be a break wall where the waves are smashing against it or you can be a screen or an open grate where the worst waves merely flow through. Allow the feelings to pass through you like a wave and leave as quickly as they came.
Best of all things to you and your family,
C.