Answer: Pat is going through menopause.
Explanation: The statement details that Pat is a woman who has a good marriage, a job that fills her with satisfaction, and her children are fulfilled people. Pat seems to be in a good time in her life, but even so, there are times when she feels depressed or anxious. Pat is a woman who is in the last stages of middle age and it is normal for women to show symptoms of menopause at this stage.
Women who are going through menopause may have symptoms of depression and anxiety. Her body temperature rises and there are sudden mood swings.