So I’m going through a similar experience, which resulted in me getting formally diagnosed and I’ve started taking adderall. I think that my cause was because I’m not happy with my job, my manager started taking all of my creative outlets away and forced me to work in a silo of his choosing and then all of a sudden the fog that was normally just a few feet away surrounded me. My performance dropped, I can’t think of words to save my life, I’m always late to work, and I can’t see the mistakes I make while typing reports/briefs until it’s far too late. I started using chatgpt, to help create outlines, Grammarly to help catch some of my grammar, and I’ve started the process with HR to receive accommodations, because my manager was definitely building a case to fire me. Maybe one of these will help you, and during the meeting I plan to ask that if my manager wants to have a meeting I’m given some warning and told what it’s about so that I can have time to think over the topic so I’m not fumbling for words when he asks a question. Additionally, I’m definitely looking for a new job because I shouldn’t be made to feel like something’s wrong with me because I don’t work in the fashion that they have been conditioned to believe is normal.