I left on October 31, I still have the occasional night where I can't switch my head off (maybe once or twice a month, which is a huge improvement as for a time it was every night for months on end). I also have nightmares, sometimes flashbacks and sometimes about things that had never happened but it always terrified me and I woke up having a panic attack. I think for me it's a way of kind of processing stuff. I dont deal with anything during the day because I have a toddler to keep me on my feet. I have consciously avoiding dealing with my emotions for a really long time. Once I started trying to deal with things, through counselling, meetings etc, I found that I was able to sleep and stopped having nightmares other than very occasionally.