PTSD and full repair of the limbic system

I've been reading about PTSD and the damages it does to the brain (more specifically, the limbic system which includes the hippocampus, the ventromedial prefrontal cortex, and the amygdala). I have been harassed and tortured for a prolonged period of time and I have all the symptoms described for PTSD.

It does explain why my emotions were very out of control and often to the wrong stimuli, and possibly could have been induced and conditioned as a frail mind can quickly associate negative emotion with all sorts of stimulus. Psychologist have shown that a person can quickly associate fear with many stimulus. For example, by instilling fear and anxiety in a victim, you can quickly associate these negative emotions with all things furry.

Here's a good article on PTSD and the damages to the brain: http://brainblogger.com/2015/01/24/how-does-post-traumatic-stress-disorder-change-the-brain/.

My symptoms have subsided drastically (drastically is an understatement) and my memory, in my opinion, is probably better than ever which does indicate that part of my limbic brain is repairing itself. My questions are as follows:

* What activities help repair the limbic system? I know doing physical activities and meditation does help repair the hippocampus. Is there anything else you would suggest?

* Can the limbic brain fully repair itself without the use of medication? That is, can it return to it's full size without the aid of medication.