so basically I had a sexual dream about something very weird. I don't want to say what it was, but it wasn't the normal sexual stuff. It was very weird, some might even say disgusting, and something which in I do not find sexy in real life. When I woke up from this dream, I had an erection, but as I said before, I don't find it at all sexy, so why exactly did I have an erection when I woke up. This is making me anxious, so I need answers.