Some people feel homesickness; others feel “outsickness”

“Homesickness is a feeling that many know and suffer from; I on the other hand feel a pain less known, and its name is “Outsickness.” When the snow melts, the stork arrives, and the first steamships race off, then I feel the painful travel unrest.”
–Hans Christian Andersen, 1856 letter, quoted in Jens Andersen’s 2005 biography