The DNA service that I have an account with recently "updated" the regions from which the DNA comes. I lost all my German and suddenly became about one third Swedish and Danish. I assume they mean Vikings. Because I have no known Swedish or Danish ancestry and I know from where most of my ancestors came. And they weren't from the Norse regions. I can trace everybody back to at least the mid 1800s.
So, my DNA shows some inexplicable results. I am 12% from Wales. Who? Who were these Welsh people who gave me so much DNA? Who were these Danes or Swedes? I can't figure it out. The DNA didn't help me to find my ancestors at all.
I presume that there will be another update one of these days. I bet I will lose some of that Viking ancestry. I am not happy about the results. It doesn't matter that I am Danish or Swedish, but I don't think I am. I am me and the DNA results don't matter to me at all. It was just one piece of the puzzle to look at where I came from. And telling me something I am not is not helping. At this point I do not recommend spitting into the vial and doing DNA tests because to me it hasn't helped uncover anything. (Maybe my angry attitude is the Viking in me.)