I’m just switching from letrozole to anastrozole beginning tomorrow. Pre-lumpectomy with surgery scheduled for mid-March. Conversation with oncologist is now leaning to possible mastectomy which angers me. The whole idea of taking AI was to avoid mastectomy. Because I have had the lump for over 2-1/2 years, I am frustrated and disappointed in my “care” since first alerting doctor then fighting to have ultrasound and being told “nothing to worry about !” Due to fact I had breast cancer over 20 years ago, why didn’t they do a biopsy back then??😡 Instead, after quite “accidentally” finding endometriosis from an MRI due to pneumonia hospitalization over a year later, and referred to OB-GYN who forced the ultrasound which IMMEDIATELY was then diagnosed with ILC. That was nearly a year ago and here I am. Turning 79 next week and abhor the thought of 1) a possible mastectomy after all this time, and 2) taking AI for probably the rest of my life! I’m going to fight taking my chances rather than all the side effects of AI. Quality of life vs. treating multiple side effects seems worth the chances at this point.