So every other night I have trouble falling asleep and all I can do is think. I start thinking about the most random things and I start questioning myself about them and the only way to get them out of my mind is to search them up on google that very second and if I don't then I cannot sleep and it almost feels like my brain is punishing me if I don't do this. I will ponder upon 3-7 things before I can actually fall asleep. Mostly, the questions I ask myself are health related and I am also concerned I have hypochondria because I always think I have something wrong with me. I don't know if this is all linked together but other things also happen to me at night. I feel like the temperature in the room goes up and I get very hot and I am never comfortable. I urge myself to get up and turn the fan on or change the pajamas I am wearing. I also cant sleep with the lights off because I am afraid of something that really isint there. But the strangest thing of all is that I can stay up 'till 2 or even 3am thinking about everything humanly possible and the next day I wake up completely fine and I wont be tired all day. I know I have something wrong with me, and all the doctors say it's my hypochondria but I am sure it's not I need to know if this happens to anyone else. What can be done about this? What is it?