Paris Syndrome manifests itself differently in different people, but amongst the most common symptoms are acute delusions, hallucinations, dizziness, sweating, and feelings of persecution.
The shock of coming to grips with a city that is indifferent to their presence and looks nothing like their imagination launches tourists into a psychological tailspin which, in at least six cases this year, necessitated the patient being flown back to his or her country under medical supervision.
Usually, though, bed rest and hydration seem to take care of the problem within a few days. Paris syndrome is "most common among Japanese" tourists. The Japanese Embassy, though, has had no shortage of people who, in the throes of the Syndrome, call or visit to be reassured that the city is not going to collapse in upon them.