I'm sorry to hear about the flashbacks. I hate those. It's not just buried memories. It could be something is just reminding you of them in some way. We've talked about triggers here. Sometimes a noise or a smell or even the pillow you have now--who knows? I'm just pulling things out of the air. Like for me, I remember this one episode of abuse. That's not the problem. But when the wind blows a certain way, the trees hiss a certain way, I'm there. It's happening. The trauma was so bad that the even is ready to pop out at any HINT that it may happen again. That's PTSD. It's the soldier under the table at the grocery store when a car backfires.
I use what SD said. I say over and over again--in fact I used to carry a note in my wallet that said, "It's not happening now." I could pull the note out of my wallet and read it if the flashback got too bad. I also know to stay indoors when there's a certain type of rain storm blowing outside. It's hard, because part of me so wants to go out in that storm, like I'm almost drawn to the flashback, but I know "It's not happening now." So I plant myself in a chair inside the house until the storm passes.
I hope it gets better for you. My therapist would say that there's something about that memory that we haven't dealt with yet, some emotional reaction we haven't confronted. I don't know if he's right or wrong on that one. I something think I'll always have them if I'm triggered in just the wrong way.
Hang in there. I hope your flashbacks do get fewer and weaken in intensity. You deserve some peace.
"This search for the truth--it's not for the faint of heart."--Goren on 'Law & Order: CI'
"The former things will not be called to mind, neither will they come up into the heart."--Isaiah 65:17