Symptoms of depression include: feelings of sadness, tearfulness, emptiness or hopelessness, angry outbursts, irritability or frustration, even over small matters, loss of interest or pleasure in most or all normal activities, such as sex, hobbies or sports, sleep disturbances, including insomnia or sleeping too much, tiredness and lack of energy, so even small tasks take extra effort, reduced appetite and weight loss or increased cravings for food and weight gain, anxiety, agitation or restlessness, slowed thinking, speaking or body movements, feelings of worthlessness or guilt, fixating on past failures or self-blame, trouble thinking, concentrating, making decisions and remembering things, frequent or recurrent thoughts of death, suicidal thoughts, suicide attempts or suicide.