Why Do Healthy People Suddenly Get Life Long Illnesses?

Most people I’ve known as an adult considered me to be the pillar of health (although I didn’t), as I was always seen to be eating well and I was super fit and strong. Yet at 22 years old, my life turned upside down, as I started accumulating a long list of health symptoms… symptoms that no one could help me with. I had a mystery illness that after about 10 years, was finally diagnosed as chronic fatigue.

Yet it’s not just the illnesses we associate with auto-immune disorders… Why is it, that people who look completely fine, whose medical tests show them as being health, can suddenly end up with a life long illness?