Pam Blaine was on top of the world. She’d just graduated with a master’s degree in arts administration and landed a new job with the Utah Symphony.

But just as she was hitting her stride, Pam was diagnosed with non-Hodgkin lymphoma at age 27.

“I’d been unusually fatigued and losing weight,” she says. “Then I developed a nagging cough and felt a strange pressure in my chest.”

Pam chalked her symptoms up to work-related...