Here are a few words from the workbook by Elizabeth Vermilyea titled "Growing Beyond Survival" in a section on Dissociative Adaptations, Process (Mental) Stress Responses

Passive influence -- feeling controlled from within, watching yourself do things you don't want to do

Hallucinations -- hearing voices in or outside of your head; seeing images in or outside of your head that are related to the voices or trauma

Referring to yourself as "we" -- feeling like there are others inside your head

Switching -- moving into another personality or identity state; going away and letting "someone else" inside take over


In other words, these are adaptations to trauma -- and (some) people know about them and how to treat them.