What is Premenstrual syndrome?
{{no sources|date=June 2013}} '''Premenstrual syndrome''' is a collection of [[emotion]]al symptoms and conditions, with or without conditions that are physical. To actually declare PMS, certain emotional symptoms are present, the most common of which include [[stress]], [[anxiety]], problems falling asleep ([[insomnia]]) and mood issues. The condition affects many females. {{biology-stub}} [[Category:Diseases and disorders of the female reproductive system]]