Does the diagnosis make sense to you? Whenever I would get a diagnosis, I would spend time reflecting on the diagnosis and researching about it and it's treatment - maybe that would help you? At the end of the day, a diagnosis only holds the power that you give it. If you think it fits and provides a useful way for you to conceptualise your difficulties, then great. If not, discard it, or fight for one you feel is more accurate.

All the best

*Willow*