Polyphagia

An extreme, insatiable hunger or excessive overeating, disproportionate to metabolic needs. Often associated with uncontrolled diabetes mellitus, hypoglycemia, hyperthyroidism, atypical depression, anxiety disorders, bulimia nervosa, medications (corticosteroids, antidepressants, antipsychotics), Prader-Willi syndrome, hormonal changes preceding a menstrual period, and sleep deprivation.