Rock fever

Rock fever and island fever are colloquial terms for a form of mental distress said to mainly afflict mainlanders who move to isolated islands, especially any of the Hawaiian islands or Guam. It is not a medical term or classification and has not been the focus of any serious research. It has been described as "an ailment" of feeling "stifled by size and isolation", making its sufferers "anxious, irritated, desperate, and claustrophobic." It is often ascribed to homesickness. Rock fever has also been described as a feeling of isolation that could arise in any isolated place and afflict anyone, including native inhabitants.