Yоu аre prоviding cаre fоr а 42-year-old male patient who has been dealing with depression and alcohol withdrawal. The patient's family reports that in addition to his history the patient has been uncontrollably worried and fretting for several months. It seems like any little thing will set him off. He has also been complaining of nonspecific aches and pains that do not seem related to any injury that they remember. In addition to his other problems, the patient is also likely suffering from: