The Center for Complicated Grief

Prolonged grief disorder (PGD) is a form of grief that is persistent and pervasive and interferes with functioning. It’s characterized by persistent intense yearning, longing and/or preoccupation with thoughts and memories of the person who died, along with other symptoms such as identity disruption, a marked sense of disbelief, avoidance of reminders of the loss, intense emotional pain related to the death, difficulty engaging in ongoing life, emotional numbness as a result of the death, feeling life is meaningless because of the death, or intense loneliness as a result of the death

SOURCE: The Center for Complicated Grief