• Loss of energy, fatigue; feeling slowed down or dragged
• Feelings of emptiness; persistent low, anxious feelings
• Loss of interest in pleasurable activities(including sex)
• Disturbances in sleep patterns(insomnia, oversleeping, early morning walking)
• Appetite and weight changes(loss or gain)
• Recurring thoughts of death/suicide, suicide attempts
• Pessimistic, hopeless feelings
• Feeling worthless, guilty, trapped
• Memory lapses, loss of concentration, inability to make decisions
• Physical symptoms of disability or pain not caused by physical disease(headaches, stomachaches)

In general, anyone who suffers from five or more of these listed symptoms nearly every day, all day, for more than two weeks may have an illness that requires treatment.