How do I know how depressed I am?
A person with mild depression feels blue, struggles to achieve as well as usual at work or at school, may not feel as energetic or enjoy social contact, and sighs a lot.
A person with moderate depression has similar symptoms and feelings, and may have some unhelpful negative thoughts creeping in and these become more intense and enduring.
A person with severe depression is usually bed-ridden and unable to attend work or school. They typically stop almost all of their usual social functioning.