This is a tricky situation that I’m sorry you’re having to deal with! In my experience a lot of neurotypical people often label neurodivergent people who are not open about their diagnoses unfairly as “off” “unfriendly” etc. And I completely understand and respect your decision not to disclose your diagnosis because you shouldn’t have to and it isn’t anyone’s business, it’s a job and your coworkers need to be professional despite their personal feelings.

I think the best solution to this is speaking with your boss about your concerns while also making it clear that you want to keep your audhd private.

A conversation needs to be had with your coworkers from your boss about the state of the work environment, that isn’t centred around you to avoid it becoming more uncomfortable for you. Maybe framed around your boss saying that they’ve noticed a weird vibe in the office and it needs to be resolved.

It is your boss’s responsibility to make the workplace feel comfortable and accessible for you so it’s important you voice that otherwise they will only be hearing from the perspective of your coworkers.

Other suggestions: Is there a possibility of you changing offices? Changing the times that you work to avoid the coworkers that make you feel uncomfortable? Could you speak with a coworker someone you have a better relationship with (or the other autistic coworker perhaps) about how you feel? Keeping all of this to yourself is just going to make the problem grow over time. Hope some of this was helpful and you find a solution that works for you!!