I'm not a fan of "labels," but let's face it, protocols vary globally and are crucial within the professional mental health community for purposes of diagnosis and hopefully assigning cogent treatment. And in the U.S, for insurance billing purposes.
Roz, sorry to hear you did not exceed personal expectations with English exam. Truly a difficult language to manage even for native speakers! I've learned to compartmentalize disappointing results and working ever harder to improve for the future. Every confidence you will do better next exam for I am the "forever optimist!"