Jennifer is a 35-year-old G1, P1 who gave birth by emergency cesarean 2 weeks ago, to a 7-b 6-oz baby boy. She has come to the OB clinic for her 2-week follow-up visit and is accompanied by her husband and her mother. Jennifer appears tired, her color is pale, and she has dark circles under both eyes. Her affect is flat. Jennifer’s husband reports that she is not sleeping, she cries often, her appetite is poor, and she seems to be constantly worried about breastfeeding. Jennifer’s mother states that the baby cries much of the time and never seems satisfied after breastfeeding. She says that there have been times in the past when Jennifer was depressed and she took antidepressant medication, although she did not want to take any medication during pregnancy. Questions: 1. What symptoms presented in the case study indicate that Jennifer is experiencing PPD? 2. What is the primary physiological concern at this time?