a strange visitor

it happen to me at the age of seventeen. i was in my room and i was in between sleep and awake. i rolled over on my bed to see what time it was. it was about 3:45 a.m. Rolling back on the other side of my bed, i fall back into a deep sleep. waking up because i feel a strange presence in my room. I find this thing sitting on my chest trying to strangle me. For some reason it left. Thinking it was just a dream i went back to sleep. i awoke again finding this strange thing on my chest,and this time it actually is strangling me. As i was strugling with 'it' i started to attempt to scream for my brother to help me. He could not hear me . Finally with some effort i manage to knock this thing off my chest, hitting the floor it then kind of toppled to my door, it open my door then left. i never saw it again. When i awoke the next day i found hand imprints around my throat, and an impression on my chest, as if something was sitting on it. Since this incident i developed a case of insomnia. Because i was scared that i thought the thing might come back and finish the job. For awhile i would awake at 3:45a.m. thinking that it would return. I couldn't really describe it but it was about maybe 2-3ft. tall. I couldn't see it, all i saw was its silohette.

now i never sleep on my stomach