Affecting around 100 tourists a year, it is a form of religious psychosis sparked by a visit to Jerusalem and is not confined to any one religion. Sufferers may believe they are prophets or messengers from the Lord and indulge in behaviours such as parading around delivering their own sermons, obsessing about virtue and cleanliness and will often ask sinners to repent their sins. The syndrome invariably disappears after a few weeks or when the tourist leaves the area.
Or Alien Hand Syndrome, Jumping Frenchman of Maine Disorder, Alice in Wonderland Syndrome, Capgras Syndrome?
Go have a look at Weird Diseases