Hm. I tended just to make progressive statements like "he's too close", "he's touching me" or "that's my chair" "I won't sit in that chair" "get out of my chair" or "he's cheating", "stop him cheating" until I exploded.
With hearing, I said my hearing aids were uncomfortable. I eventually managed to say they hurt me (I was believed after they found a blister in my ear!) but they've always been dubious about my complaints about them being to loud because they shouldn't be.
I never really talked about it when I wasn't upset, and when upset (even now) I'm too overwhelmed to explain it).
Some of the children I've worked with have said things like "it's too noisy", "I'm cross" or "its bubbling up". But mostly they just run, meltdown, etc.
I've had some "I'm angry", "you're ugly/stink/insert insult" and "I hate you". Usually followed by being really stressed that they were mean and said 'bad words' and that everyone will hate them forever. Often when asked the children 'don't know' why, or explain that someone cheated/it wasn't x's turn, etc.
I've also met a boy of 7 with ADHD who was much more able to describe it and white empathetic about the boy in the paragraph above. I can't remember what he said, but it was quite a technical understanding of ADHD and the brain which only a child who knew about their diagnosis could have.
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Diagnosed with:
Moderate Hearing Loss in 2002.
Autism Spectrum Disorder in August 2015.
ADHD diagnosed in July 2016
Also "probable" dyspraxia/DCD and dyslexia.
Plus a smattering of mental health problems that have now been mostly resolved.