Describe a real nightmare

A few months ago I had a scary nightmare. I had just arrived home in my car when I noticed a man standing there in front of my garage door. I opened the door and asked him what he was doing, when he suddenly turned around and chased me. I immediately ran towards my front door and got inside just in time. The man began to pound on my door continuously, and I noticed it began to crack. Right when I turned around I noticed another man standing in the center of the room. At the same time the guy outside broke the door down. With in an instant both men tackled me to the ground, and I noticed that they were zombies. Right as they began to bite down I woke up. When I woke up my heart rate was super fast and I felt like my body temperature was 110. That is one of the most horrific nightmares I had experienced in my life.