Many women feel physical or mental changes days before their menstrual cycle.  When these symptoms continue to happen month after month, they are known as PMS.
Symptoms of PMS may include depression, anxiety, poor concentration, irritability, changes in sex drive, changes in appetite, breast tenderness, bloating, headaches, fatigue, skin issues, abdominal cramps and more. 
It is important to keep track of your symptoms every month and discuss them with your healthcare professional. 
There are several changes that may help with reducing PMS symptoms such as nutritional changes, physical activity, relaxation methods and dietary supplements.