the two mental problems share a common symptom.....

people with DID have child like alternate personalities

people with the problem of having pseudo-psychopathy traits sometimes seem imature, child like and can sometimes have a type of personality that is similar to that of DID type alters..

I cant speak for your psychiatrist but those around here where I live and work who use that same wording is just the psychiatrist saying no you dont have DID what you have is pseudo-psychopathy traits.

in other words your type of personalities are similar but different then having DID.

that said only your psychiatrist can say what they meant by what they said...

my suggestion let your therapist know you didnt understand what they were saying and you would like more information about what your problems are and clarification on what they said.