((((PTSD))))

Yes. I also have complex-PTSD due to severe CSA. I do revert into a child in session - or at the grocery store sometimes - or at work last year when I was having my breakdown. But mine is because it went all the way over to DID and formed alters.

I do know that not all people fully split - they don't have full blown DID, but they may have started to split and have parts of the brain that are almost like child alter states. The thumb sucking and such does happen in those situations as well as DID situations.

I am sorry that you had those things happen to you that caused you such great harm.