I'm a bit confused by the fact that the article speaks of this as a condition of which we are only newly aware. In its original usage, wasn't the term PMT (pre-menstrual tension) originally coined to name this very severe condition? - before it was co-opted as a name for the much milder discomforts of almost all women's menstrual cycles?
Doctors decades ago, even in the depths of their disregard for women's health, were not entirely ignorant of this serious condition.
What exactly is new, other than the name? Perhaps the diagnosis has been refined slightly in a way that generates the need for a new term. But I feel slightly suspicious of all the ways in which that cultural tides push and pull on medical knowledge