Promising track star Emily is bound for a career in athletics before intense stomach pain puts her on the sidelines and she is diagnosed with IBS. But the pain endures as Emily keeps trying different treatments and medications before the right diagnosis is discovered leaving Emily to wonder what's next - and why wasn't it found earlier? A seemingly innocent mark on her Carrie's big toe is initially dismissed by a dermatologist. The mark spreads over the nail eventually leading to the correct diagnosis, but at a cost to Carrie that could have been avoided if she was properly diagnosed the first time.