Welcome to the site. I had same diagnosis and estrogen positive. It had already spread to nodes, so I truly felt like I had no choice. Had lumpectomy, chemo and radiation. Nearly seven years ago.
I HATE taking medication. With a passion!!! I think so much of it is not necessary. I know too many people who elect not to take anything with high BP, high cholesterol, etc. and take nutritional supplements and do perfectly fine.
Having said that, my gut told me I had to do chemo and radiation. It wasn't fun, but it wasn't nearly as bad as I thought it would be.
HUGS and prayers.