breast pain

hi, Iam very concerned I'm having alot of pain only in my right breast. I'm on Premarin 1.25. The last couple of weeks the pain is so teribble located around my right nipple and to the side. I've had my yearly checkup and going for my mamogram (mammogram) in a few days. The pain never lets up painful to even touch. When I go to raise up after sleeping on my back the pain is so bad I almost scream. What could be causing this.Please answer backI'm really getting scared. Thanks in advance.

[Cleveland Clinic]

Dear memela,  Breast pain is a common breast symptom.  The reason for breast pain is not clearly understood, and is not usually associated with breast cancer.  Breast pain is sometimes associated with hormonal variations and is then called cyclical breast pain.  Noncyclical breast pain does not seem to be linked to hormonal variations and is often localized to one area of the breast tissue.  Noncyclical breast pain may or may not be the result of an injury to the breast.   Over the internet without being able to evaluate including physical examination it is difficult to say for sure why you are having this symptom. You should bring your symptoms to the attention of your doctor who can evaluate.

[Baga]

A related discussion, localized breast pain was started.