I'm new to this community and i dont quite understand what you mean exactly by micro aggressions but i definitely understand how you could feel. I block more when i dont sleep very much as well. Those professors have a narrowed understanding of the world. Don't let that stop you, could you ask them in other ways via email? Ask them if there is another time. I've been beginning to get to explain to people that i stutter and iit is something I'm expecting them to deal with. Not sure how you feel about yours. Often i feel like when i explain to someone I have a speaking issue they have to yield to me otherwise it looks super fucked up on their part.