Meaning of Flu by IU (the story behind)

Flu is a song by South Korean artist IU, known for her soothing vocals and emotional performances. The song's lyrics depict the feelings of loneliness and disconnection that come with being sick with the flu. IU sings about longing for someone's presence and wishing they were there to take care of her, but ultimately realizing that she is alone in her illness. The metaphor of the flu is used to represent not only physical sickness but also the emotional emptiness that can come with feeling disconnected from others. The song's melancholic melody adds to the overall somber tone of the lyrics.