A 26-year-old with stomach pain was getting checked for celiac disease. It turned out to be stage 4 colon cancer.
Shannin Desroches was diagnosed with stage 4 colon cancer at 26 years old. Desroches, who's active and eats a clean diet, was initially told she likely had a gluten allergy. After feeling dismissed, she booked her own scans and was diagnosed with …