From this list of DSM IV Diagnostic Symptoms for Depression,
check all of the symptoms that Joanna Down exhibits.
A depressed mood nearly everyday, most of the day.
A loss of interest or pleasure in most activities,
most of the day, nearly all of the day lasting at least 2 weeks.
Insomnia or Hypersomnia nearly every day.
Psychomotor Agitation or retardation nearly every
Fatigue or loss of energy nearly every day.
Feelings of worthlessness or excessive or inappropriate
guilt nearly every day. (The guilt can be delusional, but not merely guilt about being sick.)
Diminished ability to think or concentration or indecisiveness
nearly every day.
Recurrent thoughts of death (not fear of dying), recurrent
suicidal ideation or suicide attempt or plan for committing suicide.
Significant weight loss when not dieting, or weight
gain. (5% of body weight in a month)