Nightmares

I woke up this morning at 4 AM gasping for air. I couldn't feel my arms, sweating with cold chills. I had a nightmare. The same as yesterday night, it seemed so real and heavier than ever before. I know it was the same, but I could not recall it. The emotion it brought stayed with me for another half hour; while I looked around in my empty room, checking if something was there, I was trying to decrypt this dream. It felt strange, exactly like the night before. I could feel a presence in my room. I kept a small lamp next to my bed, so I reached down to the light switch and turned it on. It lit half of my room, but the corner next to the desk was dark. Suddenly, I saw something moving, and the moment after, the light turned off, and again with a gasp, I woke up sweating and gasping for air.