No, of course it's completely logical generalise the whole field of psychology and the diagnosis and treatment of complex mental disorders from the singular experience you had - especially when they've told you they're trying to get you the most help they can from various government bureaucracies. It's also perfectly logical to just take a face value your child's teacher's opinion that "they're fine" when they've got 20+ other children to worry about and monitor. Don't worry, you're the parent and you always know best - and you're sure to tell other people too. /s
I was diagnosed with ADHD three times as a child, my parents never believed it and chose to never tell me or get me the help or medication or accommodation I needed because "I was fine". By god, I'm getting treated now and holy hell life would've been a billion times more enjoyable and productive if they'd just listened, or even told me later so that I could decide. I know you're just trying to do the best you can, but jeez this is sad - if you doubt the diagnosis, fine - get a second opinion, and a third, but think that if they're all the same, you went there for a reason and they're probably right.
I was diagnosed with ADHD three times as a child, my parents never believed it and chose to never tell me or get me the help or medication or accommodation I needed because "I was fine". By god, I'm getting treated now and holy hell life would've been a billion times more enjoyable and productive if they'd just listened, or even told me later so that I could decide. I know you're just trying to do the best you can, but jeez this is sad - if you doubt the diagnosis, fine - get a second opinion, and a third, but think that if they're all the same, you went there for a reason and they're probably right.