This has the detached feeling of a dream -- or perhaps it's as if the character is too exhausted and empty to think and is reduced to mere bodily sensations and movement.

It's almost like a poem-en-prose rather than a story, because it leaves the reader with a collection of sensations and images rather than a coherent series of events. That has its own charms!

The end is nice and creepy, as it makes you wonder who that voice belongs to.

This has many mistakes in both spelling and grammar. You also didn’t make any sense out of it. So, if someone jumps of a building, they won’t float, would they? The rest doesn’t make sense either.