Depression looks different for different people. Symptoms may differ depending on the age, physical health, gender, and mental health triggers a person is experiencing. Some common symptoms include:, Feeling hopeless all the time, Assuming the worst about life, Irritability, Feelings of worthlessness or guilt, New fatigue and lack of energy, Talking or moving slowly, Restlessness, Trouble concentrating or paying attention, Struggling with decision making, Changes in weight, Aches and pains that do not have another cause, Thinking about death a lot, Experiencing suicidal thoughts or actions, Self-harming actions (these could be physical like cutting or emotional like negative self-talk)