I have a similar thing. Lots and lots of missing time in my early life and only suspicions, inklings, things that point towards early sexual trauma and circumstantial evidence.
I can't verify from my mum, because she part of the problem and has denied things happened that she already told me happened. It doesn't help that she's kinda, sorta, a cluster b-ish person, so I can't rely on her honest account of incidents. Lots of automatic denial were accountability and truthfullness would be helpful.
Anyway...It's a little troubling, but, I agree, with everyone who says, it's what's going on NOW, with symptoms, and brain stuff, and issues, that are the only things that can really be addressed.
Plus, it sounds like, from other's, and from my experience, also, that the more safety we cultivate and can communicate to our limbic/amygdala animal brain(s), the more trauma memories surface, as we are ready and able to process them and put them in their place.
If we are still, primarily, in "survival" mode, our brains will not want to overwhelm us with frightening and traumatic memories from the past.
This doesn't seem to apply to everyone, but certainly can apply.