There have been many books since as far back 1970s discussing and describing what they call "Starseed" people, ones with alien DNA, going way back. While personal experiences have led me to believe many things others dismiss out of hand, there also a lot i reserve judgement on, including that one. And i reserve judgement even tho i fit many of identifying traits that early book on it listed. It's become a big thing over the years--(just search 'Starseed Transmissions' on Amazon) and while that doesn't make it a wrong per se, i know enough about people and psychology to be leery off folks who get rich by telling others "If you fit __ number of these parameters you are very special."
But then i was taught to question even my own thoughts. So just because since early childhood i've felt alien to this world, (i used to lay on our dock looking up at the stars feeling an emotion i had no word for when i first felt it, but later realized it was being 'homesick') i'm not necessarily buying into it being actual, as appealing as the idea is.