Celine Dion is being praised for sharing her painful journey with stiff person’s syndrome. The beloved singer was at her doctor’s for a check-up when a seizure swept over her. She tried to laugh it off when she felt the first signs in her fingers. Soon, Dion was in the full throes of a medical emergency. The harrowing scenes are part of her new documentary on Amazon Prime, "I Am: Celine Dion." After 10 minutes, she recovered.