no I never saw my alters in my mind, in fact this is one of the ways my treatment provider and I were able to tell when my problem was a dissociative one or a psychosis symptom of my other problems. when ever I could see "beings" with in or outside of me my treatment providers changed my medications and the problem went away, I would no longer see "beings" in my head.

my suggestion is talk with your treatment providers they will be able to tell you what this is with in you and get you on the right treatment so that it wont continue happening for you if it bothers you.