https://www.bcna.org.au/understanding-breast-cancer/what-is-breast-cancer/types-of-breast-cancer/https://www.bcna.org.au/resource/fact-sheet-breast-cancer-pathology/https://www.bcna.org.au/media/5850/hormone-therapy-and-breast-cancer-booklet-112017.pdfHopefully these links will help you understand where you are at!
As others above have already said they are quick to tell you the bad side of things however, we are all different and our bodies all react differently to what treatment is given. As you look through the first link, understanding breast cancer, you will see there's quite a few different types and not all require Aromatose Inhibitors!
Best wishes and take care and ask away as we are all here to help when we can