Hellooooo welcome!
Hey you're not alone, when I was younger I had dream I got eaten by a bear, a shark, (which by the way was not even in water and came into my house! How rude) and an evil horse. Ahhh those were not fun times.
AND ZOMBIES ?? WHAT? I have problems with them in my dreams, in that THEY WONT GO AWAY :/
But yeah, you read the stuff on this website and talk to people, you'll start lucid dreaming, and have zombie dreams if that is what you so desire. So welcome, and get ready to kick some zombie ass when you start dreaming