Neil Smith, "Bang Crunch"

A young girl gets a disease that makes her age very quickly.

(from Bang Crunch Stories)

Ever since you began to speed-age, your range of emotions has narrowed into the yellow line on a highway crossing the Prairies.

At first, when I read the name of the main character, Eepie Carpetrod, I was bummed that I was entering some zone of endless preciousness. But this is a lovely story. Fast and crafty and fantastical without feeling like it's some lame and irrelevant otherworld. Also, looks like the name is an Edward Gorey reference.