Sights of a Man in my House

I have lived in my parents' house my entire life. Ever since I was young, I would get an uneasy feeling about the house. It seemed like everyday someone was missing something or the lights would turn on by themselves. I eventually got used to it and learned to accept the weird things about my home.

Recently, about 2 years ago, things got stranger. I would wake up in a hot sweat and feel as though someone was pushing down on me. Then, about the same time, my parents just started arguing everyday as though they hated each other. They had never been like this before the events started happening and I thought it might be whatever I had experience. I had begun going to church a while back and since the night I woke up with the pressure on my chest, I had begun to see things out of the corner of my eye. It was look like a man standing or walking, but when I turned, my eyes only saw air.

Then, about 4 months ago, the sighting began happening more and more. The nighttime events continued too. Now, they just happen almost 2 times a week. I thought maybe it was me until a few weeks ago. A friend of mine brought me home from church one evening and as I was about to get out, he told me "Wait!" I turned and saw a very odd look in his eye. He had been an EMT and is now a firefighter, so I trust his word. He said "Did you see that?" Having been looking for the lock on his door, I said "No, why, what did you see?" Now he begins to act strange and says "It looked like a man was standing next to your door!" I jokingly said "Oh, so you see him too? I see him all the time." Then he put his hand across my chest and said "he didn't look so friendly." I just tried to get out of the car and inside the house so I said goodbye and thanks for the ride and got out.

As I was approaching the door, I was fishing in my pocket for my keys when he screamed out "HEY!" and flashed is high beams. Just then, I saw the shadow of a man running away from me towards the next house. I jumped but noticed that the shadow was solid and there was no man to cast the shadow. He told me to stay safe and I ran inside. This has been getting worse since and was hoping someone could give me advice.