I had some terrible sleeping habits in the last month or so (still do actually). I would sleep every other day, I am always awake until late at night because for some (reason I don't want to end the day, I stay 2-3 days awake sometimes (the worst was four days straight one month ago). Recently, I started to have a sudden spontaneous feeling that my surroundings aren't real, or if I want to explain it better: Sometimes I feel like my surroundings have the same structure of a dream. My perception at these time is like when I am on the bed between sleepiness and wakefulness. It seems like the same environment around me become novel to me continuously during the time I have this feeling. For example, if I am typing something on the computer, I look at the keyboard while typing, then I look at the screen, then I look at the keyboard, and then when I look at the screen, it seems to me like this is the first time I see the screen. Or when I drive my car, suddenly I realize that "I am driving" (it's like I just suddenly realized the fact that I am doing [a particular activity]), but the street and the cars around me look like something that exists in my mind instead of having their own physical properties, which leave me with a confusion for a minute or two. Could it be that my sleep deprivation has damaged my brain, and now it will take a long time before recovering? Thank you.