Yesterday, I really wanted a late-night snack, and it was the 9th day of eating, but now I can chew something to a certain degree... So yesterday, I finally couldn't resist and ate rice cake. I bit into it little by little with my front teeth, and then bit by bit with my molars. Sundaedo peel. I peeled it off and ate it. There was no problem until I ate the entire serving. Then I woke up and was chewing the castella, and the left side made a creaking sound. Is there something wrong with this? It doesn't really hurt, but it makes a noise when I chew it.