another species?

I might be going crazy, because my first answer to myself regarding the unique way my body uses energy was, well, everything according to the standard human Genome mapping has been incorrect, and we assumed that it was due to all the standard reasons, and again have landed on the supposition that my DNA sample was some how tampered with or contaminated, but maybe it is because it is not human, as in Neatheral or Denisovian (not alien). If I was another species, very much like a homosapien, it could be merely minor places in the code could be responsible for different things. I do not actually believe that, but it is a possible solution.