I was checking myself for Mendelian traits and couldn't figure out why I have one hitchiker's thumb and one regular thumb, after some research it turns out I'm a tetragametic chimera, full-body conjoined with an identical twin with two sets of DNA. If both of us weren't male I'd be a hermaphrodite. This article is about a woman who is both female twins in one, as for me I don't mind never being alone and fully qualified to talk to myself. I can't vouch for her or her identity, however it's part of the reason I have a split personality. Both of me like art and science, one of me is more assertive and we're both introverted not needing anyone else for companionship never feeling lonely. We help one another solve problems, very odd experience and I didn't know why I heard the voice giving me test answers or what it was at first.
https://english.elpais.com/science-t...n-our-dna.html