http://www.helpguide.org/mental/grief_loss.htmContact a grief counselor or professional therapist if you:
Feel like life isn’t worth living
Wish you had died with your loved one
Blame yourself for the loss or for failing to prevent it
Feel numb and disconnected from others for more than a few weeks
Are having difficulty trusting others since your loss
Are unable to perform your normal daily activities
The difference between grief and depression
Distinguishing between grief and clinical depression isn’t always easy, since they share many symptoms. However, there are ways to tell the difference. Remember, grief is a roller coaster. It involves a wide variety of emotions and a mix of good and bad days. Even when you’re in the middle of the grieving process, you will have moments of pleasure or happiness. With depression, on the other hand, the feelings of emptiness and despair are constant.
Other symptoms that suggest depression, not just grief:
Intense, pervasive sense of guilt.
Thoughts of suicide or a preoccupation with dying.
Feelings of hopelessness or worthlessness.
Slow speech and body movements
Inability to function at work, home, and/or school.
Seeing or hearing things that aren’t there.