I think being neurodivergent in a world made for neurotypical people is bound to make us anxious. Hopefully the therapist is not done with diagnosis and just named the anxiety first because that's probably the clearest. Having said that, 5 minutes seem way too short for a diagnosis, no matter how obvious. CPTSD, ADHD and ASD have a lot in common and I don't see a benefit to be fast rather than thorough.
I hope you either get a new therapist or muster up the courage and energy to ask again until you feel heard.
🤞🏼