Hi sundance!!! Long time no chat!
I hate those kind of dreams
Pdocs don't usually help in these matters...anyway, from what I know. But at least they don't push the patient into discovering..but allow it to happen.
I would caution you to go slowly still on this. But that it keeps coming back up means, to me, that you are ready to deal with more of it???
Usually whatever the dream feels like it means to the dreamer, is pretty much what it is. Trauma related dreaming can be harder though. My T has always helped me with mine.
Have you tried to learn lucid dreaming? It's becoming aware IRL that you are dreaming, without waking, and changing the dream to a better outcome. Sometimes while in the dream, you have a better way of understanding it to... but I've been working on lucid dreaming for many years and still don't have it down to a science

From what I learned, the brain is trying to file this memory away... and needs your help to do so. It will keep shifting some of the aspects of the dream to try and do this. That this dream began as a child, try and think the way you did as a child. Some images and things might be misconstrued, as a child might see them?
IDK if I can help, but will if you think you need it...