Hello,
The breast tenderness
and shoulder pain that you are having is a common side effect with
yasmin use.Oral contraceptives can cause blood clots which can lead to blockage of any artery and hence pain and other symptoms like numbness and parasthesia and ischemic changes.
Secondly,PCOS not only increases chances of heart problems,diabetes,high blood pressure and cancer of the lining of the womb (known as endometrial cancer),but it can cause breast tenderness also.