http://www.nimh.nih.gov/health/topics/depression/men-and-depression/signs-and-symptoms-of-depression/index.shtml

Signs and Symptoms of Depression

Not everyone who is depressed experiences every symptom. Some people experience only a few symptoms; some people suffer many. The severity of symptoms varies among individuals and also over time. To read about the symptoms of depression and to hear what real men say about their experiences with them, click through the list below:

• Persistent sad, anxious, or "empty" mood
• Feelings of hopelessness, pessimism
• Feelings of guilt, worthlessness, helplessness
• Loss of interest or pleasure in hobbies and activities
• Decreased energy, fatigue, being "slowed down"
• Difficulty concentrating, remembering, making decisions
• Difficulty sleeping, early-morning awakening, or oversleeping
• Appetite and/or weight changes
• Thoughts of death or suicide; suicide attempts
• Restlessness, irritability
• Persistent physical symptoms