Conversion disorder- Involves a patient who has a neurological issue of some sort after a stressful event (divorce, loss) while lab tests don't show a neurological explanation for the issue.
Somatoform disorder- Patient consistently complains of physical symptoms without a physiological explanation.
The term that describes an illness that affects the mind and reduces a person's ability to function, adjust to change, and get along with others is called, "Mental Disorder".