Trying to figure out if my flashbacks are like those others have.

I dont think I experience flashbacks like everyone else. I have dissociation ptsd to start with. My mind replays situations. My regular memories over time have changed. The ones my my mind replays, the details and situations do not. They are more vivid and bad situations. I'm guessing that's what they are. World doesn't feel real to me to begin with. I do things but it doesn't feel like I'm doing them. This makes sorting out what's going on difficult. I have a tbi, but this started before. Tbi just makes it worse.