Nearly 13 years ago, my doctors gave me six months to live. It had started as an ordinary day. I was getting ready for work when I noticed something protruding out of my navel. It scared me, so I went to my primary care doctor. He had never seen anything like that before, so he sent me to someone else. I ended up going to five doctors, none of whom could give me any answers.

Finally, a doctor ran some tests and told me I needed...