Also, I find that who I am changes radically depending on who I'm with. However when I'm alone I have no clue who I REALLY am (am I kind? Am I cruel? Do I really like metal or do I love opera? Etc... (I couldn't think of better examples)).
I also find myself lying a lot for no real reason or simply to have a story to tell.
Are these characteristics of BPD?

Thanks again!