Run For Your LIfe - Tim D. Smith - Bog

Meet Josh Raines. He's about to be a senior at McMinn County High School. He runs cross country and track. Josh Raines is dying.
Meet Tully Kismet. Smart. Pretty. She's about to be a senior at McMinn Central High School. She runs cross country and track. Tully has a secret, and when she meets Josh she doesn't tell him her secret until it's too late for either of them to run away.
Is it possible for a young adult novel to be heart wrenching and yet uplifting all at the same time? That's Run For Your Life, so named because that's what the heroes do. They run for their lives.