If you have lost interest in doing things you usually enjoy, have had changes in your sleeping or eating habits, feel listless or agitated, have trouble concentrating, and feel blue every day for two weeks or more, you may be seriously depressed. Talk to someone you trust about your feelings. Make an appointment with your family doctor, or ask someone for help making an appointment. Do not keep your feelings to yourself. Talking to someone may seem hard, but most people find it makes them feel better after they let someone know they need help. Your close friends and family may already have noticed that you seem sad or tired. Letting them know what’s going on will help them to understand and support you.