Frаnk is leаving tо gо tо college in аnother state tomorrow. This will be the first time he has been away from home. His parents and he are very anxious. Over the past few days, he has also experienced some numbness in his legs. He went to the doctor, but they said there is nothing physically wrong with him that would explain the numbness that he has been feeling. Despite understandable confusion and anxiety about the numbness, Frank has not shown excessive concern about the numbness. What Psychological Disorder does Frank likely have?