Second time around

Hello, new here, I was diagnosed 10 years ago at 31 with breast cancer, lumpectomy, chemo and radio slight node involved. I celebrated 10 years with my team this year....which was cut short very quickly. 2 weeks after ultrasound showed something in same breast, core biopsy of 4mm lump that no one could feel tested positive for DCIS . I had mastectomy of left breast on Friday 28.3.14 with tissue expander put in place. I was home 3 days later am recovering well. Pathology has come back, nothing else was found in breast at all. Doc says no chemo or radio again but maybe tamoxifen again. I am feeling very blessed , I am an athlete so am going to attemp a slight run tomorrow to try and get on top of some thoughts and emotions I am experiencing that didn't 10 years ago.... Xx