Hi Emil - your post is interesting. I had always wondered if my state of mind at the time of my head knocks had anything to do with the PCS and I did ask several specialists - they said no but I still had my doubts.

At the time I was extremely busy at work - 2 staff members had left and I was covering their work - which made long hours. My best friend was dying of cancer, my mum was having to move into a retirement village and my brother was having tests for cancer. My husband who later left was not at all supportive. I had major stress for a long period of time and I was wondering if your brain gets locked into it? I know that I can not handle any stress what so ever now - instant bad headache etc

So I too wonder about this. there is also the theory that those with higher intelligence develop PCS due to noticing so many subtle changes in the brain. Maybe it is the combination of both?

Lynlee