This patient support community is for discussions relating to breast cancer, biopsy, genetics, chemotherapy, hormone therapy, lumps, lumpectomy, lymph node dissection, lymphedema, mammograms, mastectomy, radiation therapy, reconstruction, and self exams.
The main issue is that you are confused about the further management plan in your case.
You need to call and schedule an appointment with your doctor or oncologist and talk to him/her in detail about aromatase inhibitor's - the possible side effects, which one would be prefferred in your case and if you have any other options.
You should go ahead with the treatment as this is known to increase the disease free survival and prevent recurrence or metastasis.
You could read up more about these drugs on the following sites -
http://www.cancer.gov/cancertopics/aromatase-inhibitors
http://www.cancer.org/docroot/CRI/content/CRI_2_4_4X_Hormone_Therapy_5.asp
But still, it would be best to talk to your doctor about this in detail and clear all your doubts.
Do let us know how you are doing.
Hope this helps.
Good luck.