I am too much scared to sleep alone especilly in dark. so that when ever i am alone i will not off the lights. when i try to my mind is thinking about dead people only. especially some of my loved ones. if there is any other people sleeping in the room then there is no problem. but the problem is when ever i am alone. is this a psychiatric problem. i need to consult to a psychiatrist. i could sleep only 1 or 2 hours at night. so that i am facing problem in my work. please help. how can overcome this problem