That's amazing, AL, that you were in some way aware of this alter. Thanks for sharing.
I guess we don't have the same experience but I do recall several incidents throughout childhood when child host told others there were 'more of me' - she described it as identical sisters (as in they looked the same as her but were different people) but we could only ever have one of us in any place at one time.
I recall she also once told another child that
I think she was like eight at the time! 0_o The 'funny' thing was she thought it was just a horrible story thought up by her disgusting mind. Obviously there was some 'leakage' of information there, but the dissociative barriers still kept it completely separate from her.
So, same question for the next person still. When did you first have an awareness of other sides of yourself?