Hi. Well, the truth is that every woman is different. Manipulating hormones can cause those hormonal side effects like breast tenderness. How long did you have that with YAZ. Sometimes you have that for a while early on and it then goes away as your body gets used to the medication. You can always try the other one to see if it is better, but again, breast tenderness is sort of common when our hormones are fluctuating (why we get it before a period, when pregnant and when we have hormonal changes). Let us know what you decide. good luck