On November 26, IU updated her YouTube channel with a new video.
The video was a behind-the-scenes footage of IU singing 'Love poem' at a studio.

She pulled a sad face and said, "I actually shouldn't have any flour-based food right now."
When asked why, she said, "I have gastritis, so my stomach hurts when I eat that sort of stuff. I can't digest it well either."

She went on, "It's the easiest thing to have on set, because I have no time to have a proper meal. So, snacking is something very hard to avoid."
IU smiled and cutely complained to the staff listening to her, "You have to go, 'Awww' at a time like this."
Then, she laughed and reassured those watching the video that she was okay.
(Credit= '이지금 [IU Official]' YouTube)
(SBS Star)