Kerry has recently called to set up an appointment at the college counseling center. He is unable to sleep, has lost his appetite, and is not interested in any of his usual activities. His distress is significantly impairing his grades and social life. Given the likelihood that Kerry is suffering from a , he will be given an appointment to see a counselor.

Psychological disorder

Explanation:

Psychological disorder is a mental disorder that occurs in the mind as behavioral symptom pattern gets impacted causing distress and anxiety.  People can face depression, panic attacks, anxiousness, phobia etc in such situation.Person tends to lose interest in social things and surrounding, sleeplessness, and other such symptoms.  

According to the question,Kerry might be suffering from psychological disorder  as she is experiencing distress and tension along with  sleeplessness, appetite loss, etc.This has degraded her grades in college.  

good question my friend