Your diagnosis is exactly as mine was.I also was surprised and shocked to be told I should have chemo,but my oncologist ,who is very well regarded in her field,and who I trust implicitly,explained to me that chemo in my instance is proven to help prevent any further problems.For me,the percentage was big enough to warrant having chemo. I can't remember the exact figure now.So I have had surgery,followed by chemo,and now I am on Tamoxifen.My chemo was 4 rounds of Docetaxel,and I didn't find it too bad.I am 5 months past chemo now and I feel great.I also feel satisfied that I did everything I was advised to ,to give me good health further down the track.All the best with what you decide.xoxRobyn