When I get sensory overload, especially from sounds, I become very tired, my eyelids get heavy and my face becomes visibly flushed and warm. I also become much less verbal, with a slight stammer and sometimes slur my words. It's like a really deep brain fog.
I can still type, just not speak.
I can currently hear a strimmer and hammering noise and I just can't function at all.
Most other people seem to describe theirs as an anger feeling. Mine isn't.