How often have you experienced a feeling of sadness or depression for no apparent reason?  a) Never b) Sometimes c) Frequently d) Most of the time Have you lost interest or pleasure in activities you used to enjoy? a) No, I haven't experienced this b) Only occasionally c) Frequently d) Most of the time Have you felt low on energy or tired most of the time? a) Rarely or never b) Occasionally c) Frequently d) Almost always Have you had trouble falling or staying asleep? a) No, my sleep is normal b) Occasionally c) Frequently d) Almost always Have you noticed any significant changes in your appetite or weight recently? a) No, my appetite and weight are normal b) Occasionally c) Frequently d) Almost always Have you felt guilty or worthless, even in situations where there is no reason for it? a) No, I have not experienced this b) Only occasionally c) Frequently d) Most of the time Have you had difficulty concentrating, making decisions, or remembering things? a) No, my ability to concentrate and remember is normal b) Occasionally c) Frequently d) Almost always Have you had recurring thoughts about death or suicide? a) No, I have not had these types of thoughts b) Only occasionally c) Frequently d) Most of the time Have you experienced changes in your mood, such as irritability, anxiety, or hopelessness? a) No, my mood is stable b) Occasionally c) Frequently d) Almost always Have you noticed a decrease in your performance at work, school, or in other important areas of your life? a) No, my performance is normal b) Occasionally c) Frequently d) Almost always ​Remember that this questionnaire does not provide a medical diagnosis. If you think you are experiencing symptoms of depression, it is important to seek the help of a mental health professional for a proper evaluation.