So sorry to hear you have to go through this crap journey again.The same thing happened to me.I had a lumpectomy,full node clearance and radiation back in 2003. Well so much for clear margins and 6 weeks of radiation- cancer came back in the same spot 7 years later.It was a 3cm area picked up on my routine mammo. So in 2010,I had a mastectomy,chemo and then Tamoxifen.I didn't really think about having the other breast off or recon at the time- just wanted the cancer gone ASAP. I''m a 16c and I wear a prosthesis to balance me.I'm used to it now but I hate being lopsided when I take my bra off. My mastectomy side is very puckered which is probably due to the radiation. I can't wear low necklines-have to alter my tops.I think about recon but can only have the DIEP type which is very big surgery and I'm not ready for that.I'm also not so sure about having the other breast off.So status quo for now. Good luck with your decision and if you're not sure then just have the one off .You can always decide later on about the other breast.Big hug, Tonya xx