Dreams & Reality (do they correlate)?

This is going to sound a little bizarre, but it’s true. Two weeks ago I had a dream I was sleeping in my bed, my computer and my desk sits right next to my bed, I heard a loud popping noise and woke up and I turned around to look at my monitor and saw a man on my monitor and he turned in to a black shadow and freaked me out and then I woke up. The next day my computer was making loud humming noise like possibly the fan might have been over-heating, so I took the computer apart and realize there was nothing wrong with the fan nor the Hard Disc Drive. I decided to defragged the HDD ( Keep in mind my comp is less then a year old) . I rebooted and it stopped humming. The next day it started humming really really loud, you could hear it clear across another room with the door shut, I rebooted the comp and it stopped. Later that night I was about to go into a deep sleep and I heard a loud popping noise, like someone blew a paper bag and popped it (it sound like it was right next to my computer), I got up to see what it was and I saw nothing, it really freaked me out, but then it seemed every time I was about to fall asleep my monitor would make loud crackling noises, so I went in the living room and eventually went back to sleep. The next day I started wondering if my dream correlated with what happened to me the night before. It was really creepy feeling, I felt like someone was watching me. I refuse to sleep in my room and now I sleep in the living room. My computer has never made the loud humming noise after that night.