Hello, due to the sudden decrease of sex hormones in the body before menstruation, it will affect the whole system and have a certain reaction. These reactions usually occur 7- 14 days before menstruation,

It gets worse 2-3 days before onset, and the symptoms gradually decrease and disappear after menstruation. These obvious changes are called premenstrual tension in medicine.

The general manifestations are: (1) mental symptoms are the main symptoms: common nervousness, irritability, general fatigue, weakness, and sometimes headache, insomnia, inattention, etc. ⑵ Physical symptoms are the main symptoms: common hand, foot and face edema, abdominal flatulence, abdominal distension in some people, constipation, abdominal pain and breast pain in most girls.

Your condition is normal, but if it hurts too much, there may be some breast hyperplasia. You'd better go to a regular hospital for examination and listen to the doctor's advice. I wish you health!