Need some reassurance!!!!

I recently stopped taking Tamoxifen in March 2012 after 5 years.
For the past 12 weeks I have had a heaviness and tenderness and pain in my other breast (R). Kept thinking this may be hormones getting back to normal.
Going to try to make an appointment for the breast clinic tomorrow as now im scared.
Has anyone else ever had this?

Bringing to top for Allyw66

Jo. Facilitator