It is normal. During the second year of high school, the study and life are tense, and the necessary nutrition can't keep up, which often affects the development of some girls, and the chest development is also implicated. Besides, the second year of high school is not the time to put energy on your chest. After going to college, I feel relaxed, and everything will be much better.

Don't worry, even if it's not big. Anita Yuen, a Hong Kong movie star, and Stephanie, a Singaporean singer, are both famous Princess Taiping. Are they having a bad time?

Please adopt learning.