I am sorry. Like Lee said you need to face the past and unfortunately nightmares and flashbacks come with the territory. It is great you wrote about it, getting the emotions and fear out. It takes time, you had a period of respite from the memories but somehow they find their way back. It is important you face, talk here, support groups, therapy or wherever you feel safe. These are unprocessed emotions that you buried, like most of us here did.

Stay strong and heal well.