The Handmaid's Tale by Margaret Atwood:
I used to think of my body as an instrument, of pleasure, or a means of transportation, or an implement for the accomplishment of my will. I could use it to run, push buttons of one sort or another, make things happen. There were limits, but my body was nevertheless lithe, single, solid, one with me.
Now the flesh arranges itself differently. I’m a cloud, congealed around a central object, the shape of a pear, which is hard and more real than I am and glows red within its translucent wrapping. Inside it is a space, huge as the sky at night and dark and curved like that, though black-red rather than black. Pinpoints of light swell, sparkle, burst and shrivel within it, countless as stars. Every month there is a moon, gigantic, round, heavy, an omen. It transits, pauses, continues on and passes out of sight, and I see despair coming towards me like famine. To feel that empty, again, again. I listen to my heart, wave upon wave, salty and red, continuing on and on, marking time.