Losing a loved one is one of the most distressing and, unfortunately, common experiences people face. Most people experiencing normal grief and bereavement have a period of sorrow, numbness, and even guilt and anger. Gradually these feelings ease, and it's possible to accept loss and move forward.
For some people, feelings of loss are debilitating and don't improve even after time passes. This is known as complicated grief, sometimes called persistent complex bereavement disorder. In complicated grief, painful emotions are so long lasting and severe that you have trouble recovering from the loss and resuming your own life.
These differences are normal. But if you're unable to move through these stages more than a year after the death of a loved one, you may have complicated grief. If so, seek treatment. It can help you come to terms with your loss and reclaim a sense of acceptance and peace.