Miller was diagnosed with a rare form of ovarian cancer (her older child, son Rocco, was 1 at the time) and lost her left ovary and fallopian tube. But before Sterling was even a thought, the Olympian was going through chemo and speaking publicly about her diagnosis when a stranger changed her life.
“This woman came up to me and took my hand, right before I went on the podium, and said, ‘I just want you to know, I had the exact same tumor. That was 10 years ago. I have two beautiful children. And you’re going to make it,'” an emotional Miller told PEOPLE at the American Cancer Society Cancer Action Network‘s Cancer Lobby Day in Washington, D.C., Thursday.