MeSO, what you say resonates with me so much. I don't really want to tell my story here and like you, I both know and don't know that it happened. It doesn't amke any sense nor carry any logic if I try to see it as an outsider looking in - my family was so "normal" yet what my alters have told me and shown me through drawings, well it also fits with other things i know about myself.
I want to bring up something related, maybe. You say that others don't talk about abuse, but i have noticed too that everyone seems to talk around the reality. No one uses the term alters, or refers to themselves as multiple. Of course, I know that this is for dissociaitve disorders and that doesn't necessarily mean DID, but lots mention parts by name or the Little Ones, etc. Am I on some kind of wrong track here? If I call other parts of me alters and say I'm multiple am I breaking some unwritten rule? I know very well that "Multiple" is not correct medical terminology, but I do tend to think of myself as multiple, or multi-faceted. I use the correct terms when speaking to others, but were kind of like family here, or friends, in a way. Can I feel free to speak with the language that I use in my head and heart or will I offend someone? Don't want to do that. I need place to belong and honestly, I've wanted it to be here, but it's not really happening for me.
I'm sorry, I didn't mean to turn this into my stuff, but it kind of seemed to follow from you have said MeSO, kind of feeling around for what's okay and what's not going to be acceptable here. I feel the same way.

if safe