Statistically speaking, I shouldn’t be alive today. Since being diagnosed with stage IV non-Hodgkin lymphoma at age 27, I’ve suffered two relapses. I’ve also had two stem cell transplants, 33 bone marrow biopsies, 186 CT scans and countless rounds of chemotherapy.

You might think I wouldn’t enjoy a very good quality of life because of all that. But you’d be wrong. I’m an active, energetic, healthy 41-year-old. I’m also a wife and...