These symptoms are merely associated with lack of quality sleep and perhaps some mild clinical depression. Many patients describe the sensation that they feel encapsulated and their sense of hearing is diminished, they can't see colors as well or as sharply and the feeling that there is some sort of barrier between them and the outside world.

The changes in vision can often be limited to one eye and standing before a white wall and covering one eye and then the other can often reveal slight changes. Patients also state they feel mentally slow and often realize they have experienced a locked gaze without much recollection of their thoughts. Some claim memory problems and note that after reading passages or listening to someone speak, they are unable to recall much if anything of the content.

You'll be fine. These symptoms are nothing to worry about. If you experience terminal insomina (early awakening) then don't try and fight it. Get up and go read or watch TV and when drowzy again, return to bed. Do not read or watch TV in bed and reduce lighting in the room to the absolute bare minimum possible, even if you have to place a dark blanket over the windows. Circadian rhythms can become disturbed and the presence of light causes a sort of twilight sleep to waking state to continue. Do not eat just before bed as well, because digestion can interrupt sleep. Establish a schedule and stick to it. The body will soon begin to fatigue at anticipatory time schedules and you can resume normal sleep patterns.

You'll be fine. Again, just take it step by step and your sleep patterns will soon be restored. The odd sensorium will pass as well. Nothing to worry about.

Best regards and Good Health