Here is an  excerpt the National Institute for Mental Illness with the common signs and symptoms of Depression and the National Help Line Information:

Signs and symptoms include:

  • Persistent sad, anxious, or “empty” feelings
  • Feelings of hopelessness or pessimism
  • Feelings of guilt, worthlessness, or helplessness
  • Irritability, restlessness
  • Loss of interest in activities or hobbies once pleasurable, including sex
  • Fatigue and decreased energy
  • Difficulty concentrating, remembering details, and making decisions
  • Insomnia, early-morning wakefulness, or excessive sleeping
  • Overeating, or appetite loss
  • Thoughts of suicide, suicide attempts
  • Aches or pains, headaches, cramps, or digestive problems that do not ease even with treatment.

What if I or someone I know is in crisis?

If you are thinking about harming yourself, or know someone who is, tell someone who can help immediately.

  • Do not leave your friend or relative alone, and do not isolate yourself.
  • Call your doctor.
  • Call 911 or go to a hospital emergency room to get immediate help, or ask a friend or family member to help you do these things.
  • Call the toll-free, 24-hour hotline of the National Suicide Prevention Lifeline at 1-800-273-TALK (1-800-273-8255); TTY: 1-800-799-4TTY (4889) to talk to a trained counselor.

Exerpted from: http://www.nimh.nih.gov/health/publications/depression/index.shtml