As Fishsandwich pointed out, the diagnostic concepts aren't all that definitive. So long as there are differing opinions on aetiology and processes, these constructs people call "illnesses" are always going to be open to various interpretations and differing emphases. I guess that's one of the frustrations of diagnostic labels for abstract, nebulous and shifting conditions.

I'm trying to focus more on living with and overcoming the challenges, and getting my life back, and trying not to get too hung up on what current psychiatric practice labels my experience.