Let’s go for a walk. My husband, Jim, looked at me, hopeful, encouraging, and held out his hand. It was such a simple idea, but 5 years ago the idea of just making it around the block seemed impossible. After losing my 13-year-old daughter, Samantha, to renal failure 4 years earlier and fighting my second battle with cancer, my spirit and body were obliterated. The thyroid cancer was gone, the Hodgkin’s lymphoma I’d beaten 20 years earlier was, too, but the recent treatment with chemo and radiation had left a mess. I had kidney problems, heart failure, and high blood pressure and was close to becoming diabetic, thanks to the 100 pounds I’d put on before figuring out that my thyroid had gone kaput. My doctors had done everything they…