The microbes we call germs have been around for a loooong time, and, tiny as they are, they are excellent survivors. You can find traces of microbes in meteorites that have crashed to Earth from other planets and moons, on the tops of the coldest mountains, and bubbling merrily in deep sea volcanic vents. Microbes are survivors. If they "know" anything, it's how to spread and how to live in the most unlikely places.
Tim Farnsworth is a successful lawyer, middle-aged but still good-looking, enjoying his beautiful house, his teenaged daughter and frequent trips abroad with his lovely wife Jane, when he discovers that while he has taken his easy life for granted, everything has changed. "The Unnamed" opens with the second recurrence of his puzzling disease, an unbearable compulsion to start walking and not stop for hours.
The first time this happened, he and his wife consulted doctors around the world in search of “The One Guy” who understood his unique condition. Though they tried everything, even strapping Tim to a hospital bed for weeks at a time, nothing worked. Then one day, for no reason he could discern, he just stopped walking, and life seemed to be back to normal. Now, years later, it’s started again.