I've had OCD since I was about 11(now 20)and I often worry about past events, sorry, I mean actually obsess over past events for months and months. I worry about things that could have happened in my past, then actually imagine it happening. When I do this, the image is actually very vivid and almost seems real, then I start to really wonder if it's true or not, even though I know I just made it up in my mind. Is this a false memory? Real memories are often very hazy, especially ones from a long time back, however these mental images I get are extremely vivid.
I then really worry as there is no way of proving if these images are true or false.