Your neighbour, Kelly, has just given birth to a bouncing baby. At first, she was happy about the baby but two months latter, you see her extremely sad, fatigued, anxious. At times she feels irritated and ends up crying unexpectedly. She has been having a hard time looking after her child as well as the rest of the family. She goes to a psychologist and she is told she is suffering from depression. What type of depression may she be suffering from? *