I'm new to this website. I'm very scared right now after learning I have DCIS in situ. My MRI has shown a little more breast cancer involvement, so the specialist says treatment must be a mastectomy, not a lumpectomy as originally thought. Although I feel if I must trade a breast for my life, it's a done deal, I still can't believe this whole situation. I feel like it's a dream. Sometimes I wake up in the morning as usual, and then it hits me. My counselor suggested I join a support group, so here I am. Any words of wisdom?