Ron is an Iraq War veteran. He wakes up in the middle of the night in a cold sweat due to nightmares in which he relives his most frightening war experiences. He refuses to talk about the war with anyone and is constantly fidgety and "on edge." He is unable to enjoy himself or develop intimate relationships. His symptoms have continued for over 3 years. He is best diagnosed as suffering from a(n) disorder.

Ron is best diagnosed as suffering from a post-traumatic stress disorder.

Explanation:

Post-traumatic stress disorder (PTSD) is a kind of disorder faced by the person who experienced the terrifying event. The person affected with this disorder may get worst nightmare and severe anxiety. They often think about the events without their control.

In the above scenario, Ron was an ex-service man who involved in Iraq war. He was diagnosed with post-traumatic stress disorder. He often gets worst nightmares regarding his war experiences. He could not get over it. He was unable to develop intimate relationships with others.