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For a doctor to diagnose someone with depression, the person must have experienced depressed mood or a loss of interest or pleasure in life (anhedonia) for at least 2 weeks.
Also, a person will also have experienced at least five of the following symptoms:
- Feelings of sadness, hopelessness, or irritability on a nearly daily basis.
- Lack of interest or pleasure in activities almost every day.
- Experiencing significant weight loss or appetite loss that results in weight loss.
- Difficulty sleeping or sleeping excessively.
- Experiencing psychomotor agitation, restlessness, or feelings of being "slowed down."
- Feeling fatigued or having a lack of energy nearly every day.
- Feeling worthless or having excessive and unexplained guilt almost every day.
- Difficulty thinking clearly, concentrating, or making decisions on a daily basis.
- Experiencing thoughts of death, thinking of harming one's self, or creating a specific plan for committing suicide.
Agitation is a symptom that can cause a person to experience feelings of uneasiness and anxiety. Some of the symptoms associated with agitation include:
- angry outbursts
- clenching fists
- disruptive behavior
- excessive talking
- feeling as if a person cannot sit still or focus
- pacing or shuffling feet
- tension
- wringing of the hands
- violent outbursts
A person who has agitated depression experiences feelings of helplessness that can make them feel out of control.