Premenstrual Dysphoric Disorder is a condition marked with severe emotional changes, physical pain, and trouble concentrating during the days leading up to the sufferer’s menstrual cycle. Because of the condition’s influence over mood and behavior, the American Psychiatric Association added it to the DSM-5 as an official mental health disorder. However, the diagnosis is under controversy as some women’s health advocates see this classification of PMDD as another example of doctors writing off women’s pain and hormonal changes as “mental illness.” Read more here.