Agreed, I think it is very normal, not sure if you do any journeling, but it could be helpful for you to write down the memories you are replaying. There are really a lot of normal things with PTSD that others may consider abnormal. I isolate myself, it's protection for me. Others see me as hiding from dealing with issues, when really I'm getting myself to a place I can deal with it. I just have to do it alone, so I isolate. Its normal for me.

I can so relate to this, i keep going over and over and over it all again and again and again... It drives me to despair and sometimes it just wont stop. Not sure why this is. My counsellor explaines it like this..

During our normal life we experience things and our brain files them in to the appropriate file for each memory. With our abuse and trauma, i was so horrific we blocked it, left it in our sub concious. Now it has crashed into our concious and my brain has no file for this, can't compute it reconcile it to a suitable folder so its just hanging there while i am trying to make sense of it. Then one day i will be able to put it in a folder and have peace.....

Not sure if that helps

Love and peace

this is exactly what happens with me, i did some online research recently as it was driving me crazy and they call it rumination and there seems to evidence that it increases the likelyhood of ptsd developing, unfortuently i still can't help doing it!