What would you call this?!

What would you call that feeling, when once in an extremely dense, busy city you start to feel desolate, then when you come home to the country it can feel like the universe doesn’t even exist, like there’s nothing more than a void around you?! It might not make sense unless you realy think deeply about this...your perception of reality exists within an extremely thin “slice” of perception (reality?). It’s like a measuring machine, or a thermometer, and all of a sudden, within a moment, you can become acustomed to a world that no one exists in, except yourself. If you start to feel isolated and/or desolate in the middle of Hong Kong (for example) , then it doesn’t necessarily mean that something’s wrong with you. It simply means that you become more (less?) sensitive, or that you enter into a smaller or larger range of perception, just like a measuring device has a specific range of measurement, but in out case it’s not measurement, it’s perception. My mind might like to think back to the thermometer, or the thermal camera; these are, in a sense, creative things or ideas, because, for example, the thermal camera, helps us see what’s invisible, yet it’s range is limited. It could see in a differing dynamic range, or be able to pick up thermal wavelengths using various sensitivies, and I hope that we will one day discover this idea and not just relate it to reality, but also make it a reality! I feel as though my thoughts, or at least my neural connections, have organized into a specific way, but as of now I can’t explain or describe what this means.