What are the symptoms of a nervous breakdown

A "Nervous Breakdown" is a popular term - it is not a clinical term - that is often used to describe a mental disorder that a person experiences. It is used for a number of reasons, including: to hide a diagnosis; to avoid the stigma of a diagnosis; not understanding the reasons for certain loss of function (such as not seeing a doctor, but having symptoms); and not accepting a diagnosis among others.

There are many disorders that can fit within the criteria of "Nervous Breakdown", but those that most commonly occur are those related to:

Anxiety
Generalized Anxiety Disorder
Panic Disorder
Panic Attacks
Trauma Disorders
Post-Traumatic Stress Disorder
Acute Stress Disorder
Psychotic Disorders
Schizophrenia
Mood (Affective) Disorders
Depression
Bipolar Disorder

The Disorder that is mimics the most directly however is Major Depressive Disorder (Depression).

On the historical note, the reason the term "Nervous Breakdown" came into being was that people preferred to have a physical (Nerves) illness as opposed to a psychological or psychiatric illness.

Major Depression affects 15% of Americans at some point during their lives, and 100 million people are affected on any given day. The age of onset is fairly evenly spread among people. The mean age is 40, but Depression can onset from childhood to seniors. It can come on suddenly in days, or build over years. Anxiety, phobias, panic and Dysthymia can predate it. On average, the course of Major Depression runs 3 to 9 months if untreated, and 85% cases resolve within 1 year. Over 1/2 of people who experience major depression only have one episode. With each successive episode, the patient has a 15% risk that their next episode will be a manic episode, changing their diagnosis to Bipolar Disorder. In the end, approximately 15-20% of those with major depression become chronically depressed. Approximately 15% of patients with major depression may commit suicide, as well, with men committing suicide at a rate 2 times as often as women.

My daughter just had a nervous breakdown (depression) didnt eat, drink, even get out of her apartment. Her utilities got shut off and she stayed there for weeks in the cold. She is currently in a mental health hospital and doesnt even move , she stays in a sitting postion for hours and stairs at the wall. She isnt even going to the bathroom on her own. Doctors dont know what to do , they have no answers. she had no pluse when she arrived to the hospital they told me that her heart was weak, after that she was talking and now she doesnt talk nor move. Do you think this could be from heart failure?