i too try to understand. i was dx a few years ago. i would like to reccomend an excellent book to those who suffer. The book is called "Waking the Tiger" by Dr. Peter Levine. He has over 25 yrs. experience with healing of trauma. mostly the complex ptsd kind. i remember even when the ptsd stress triggers began for me, and i think recognizing your 'triggers' is one step in healing. For example, when the telephone would ring, my heart would begin to race (tachacardia) and the intense fears would return.
I hope you all find some support, love and healing here at PC. This is the type of problem that does not go away on it's own.