One day. During my trip home. I feel like there is something coming from behind but I turned to look back, could not find anything. I don't care as much. Just imagine yourself as that. But that day I didn't sleep well until 4 o'clock. I saw a shadow person doorway and disappeared. From there I went to sleep.When I wake up in the morning. I'm not sure about that last night, what I saw was real or just a dream.