Lowery has extreme feelings of failure and worthlessness and believes he is the most sinful person on earth and deserves to die. he has eaten little and rarely left his bed in the last several days. lowery would be diagnosed with a disorder.

Major depressive  

Explanation:

Major depressive  disorder is the type of disorder that induces depression and sadness in a person's mind which can last for long period of time.These feelings tends to persist in mind and disturb the normal functioning which is also known as  clinical depression.

Symptoms displayed by the person are sadness for extended period, less sleep, tiredness,worthlessness, harming yourself etc.

According to the question, Lowery is suffering from major depressives disorder(MDD). She is thinks herself as sinful individual ,want to dies and has no interest in activities of daily life.

is this even a question? ? : /