I have had a lot of experiences with memories returning. I've never been able to get the memories back on my own, they have always come after a 'link' was discovered by my psychologist. A link is where the psychologist finds an emotion and puts it in my conscious before I realise it. Then the memory associated with the emotional link comes back over a period of a month. It can take longer.
For example, I had a flashback of coming home and seeing the door. And my psychologist discoered the link for it was feeling 'late'. So she tried to talk me into feeling the emotion of feeling 'late'. The memory came back over a month after my psychologist appointment with the 'linking'. The memory was I came back of arriving home with my mother shopping and being 5 minutes late. My father starts domestically verbally violently attacking my mum with me in between. It was verified by my mum.
The memory of coming home late stopped the flashbacks I was having being on the bus or in the car and coming home. I was able to travel without having panic attacks and flashbacks after getting the memory back of my dad attacking my mum coming home from shopping.
I've had two false memories come up, as a memory later changed what I 'felt' happened. but most have been true and many verfied. The truth of the memory isn't important. It is the processing that matters as when a memory isn't processed it is PTSD and doesn't go into long term memory. My psychologist said when a memory is processed it will go into long term memory. The false memories haven't even been really bad. One was just thinking something happened at a different time. The other was thinking my mum didn't support me in the kitchen after I was attacked. Her memory got mixed up with what my memory of my dad did.
I know a lot of psychologists I have seen didn't like this therapy of' linking' and refused to use it because they were afraid of being sued ect. But I am working 20 hours a week, have a small social life, are a mum of a toddler and the flashbacks are about 80% less in intensity than 12 years ago. So 'linking' it is really worthwhile for me. You can't argue with results.