HI Shiro. Sorry to hear you had such a rough time with the chemo. It does suck, however, excellent to hear the nasty stuff did what it was supposed to. I had things done the other way Lumpectomy first. Had to go back for re excision. Margins only just on the 2mm. I had 5 nodes positive as well. I was quite sure in my decision not to proceed to mastectomy and went with the radiation. I have recently been for my 12mth mammo, ultrasound, mri, bone scan and got the all clear so I am happy with the decision that I made. Unrortunately this is one of those things that only you can decide. All the best for whichever way you go. XOXOXO