Welcome to HCM.
I am suspecting something called as premenstrual syndrome
(PMS) based on your symptoms mentioned in your question. Are you due for your period?
This syndrome occurs 2-3 days before your period starts. The symptoms include tenderness in breasts, headaches
, mood swings etc.
Do not worry. All these symptoms will reduce once you have your periods.
All these symptoms are due to changes in the hormonal
levels in the body.
I hope I have answered your query satisfactorily.