Sense of Illness is an experimental video, which was my schoolwork shot by myself in December 2016. My friends, my father, my girlfriend, and even myself were suffering from illness at that time. I felt that the disease is like an invisible devil, and he can slowly erode the soul of a lively and cheerful person. Since then,there will be no ideal, goals and future in the life of this man. I want to show that when a person is eaten up with disease, his heart will feel depressed, his personality will be distorted and he will feel confused about his future.