Infection with the Lyme bacteria can cause this sort of internal vibration - a type of paresthesia (peripheral nerve sensation). When it's mild, you may first notice it at night when your body is quiet and still.
The supporting cast features James Caan as the young gambler, Charlene Holt, Ed Asner, Paul Fix, Arthur Hunnicutt, Michele Carey, and Christopher George. El Dorado was filmed on location in Tucson, Arizona and Kanab, Utah, and was shot in Technicolor. The paintings in the credits are by Olaf Wieghorst, who plays Swede Larsen in the film. The musical score was composed by Nelson Riddle.
Seven years ago, 2762 students were served by the campus, which is a slight increase. The student race population is 5% African-American, 89% White, 1% Asian, and 5% American Indian. 87% of the student body claims Hispanic ethnicity while 13% does not. El Dorado has a socioeconomic status of 67.6%.