Is it normal that i had this strange zombie dream? (please help)

Alright so in my dream, me and my mom lived in this really weird neighborhood with rows of houses all looking the same. And I guess there was this scientist who lived next door. And so he comes up to me and just randomly states that he feels strange. So he went away and as i was watching him walk back to his house, he collapsed on the street and started vomiting all over the place. Then he just got up and walked away. This really freaked me out, so I went inside. I heard screams and breaking glass in the house across the street. I was really scared, so i went to bed. The next day I woke up and watched television. I flipped it on and apparently, there was a zombie outbreak, spreading throughout the entire city, starting with the scientist. I heard knocking on the door, and so i thought it was one of my scared neighbors. But once i opened the door, i saw this ugly, pale monster at my doorstep. Scared, I ran to the basement. As the zombie was banging at my door, I took what i could to fend him of. I took a shovel (classic zombie fighting tool) and opened the door. The hideous monster lunged at me but a darted to the side and whacked him on the back. He jumped on top of me and started digging his claws into my flesh. I managed to escape and finish him off. As i was standing over my first zombie kill, he still had just enough energy to bite me on the ankle. I was in shock, the zombie satisfied. my mom was terrified. She couldn't stand to look at me! I think she was just being ridiculous, all i did was get ONE LITTLE BITE AND MY MOM GOT SCARED AND SHE SAID "YOUR MOVING WITH YOUR AUNTIE AND YOUR UNCLE IN BEL-AIR"