It's a bit off to post sarcastically about ADHD being "invented" right after someone shares their diagnosis. I know neurodevelopmental disorders weren't talked about in your day, but silence about it doesn't mean they didn't exist.
Sure, there is a debate to be had about "overdiagnosis" (as someone mentioned above), but let's not use that as an excuse to dismiss people who are diagnosed and dealing with the real, daily impact.
Invented was the wrong word.
Awareness would have been better.
However it does pose questions of over diagnosis.
I'm not able to dismiss the condition as one of my middle aged daughters is convinced she has ADHD, sadly along with other mental illness.
She doesn't have all the symptoms, so there are obviously different levels of ADHD.
However she's now so focused on the symptoms and condition that she believes her son, brother and possibly the cat also have ADHD.
It's like a number of other comparively recent diagnosed conditions like fibromyalgia or panic attacks for example
Both can result in debilitating symptoms.
I know only too well about the symptoms of severe panic attacks in my past.
We used to call them nervous breakdowns.
Now a bit of anxiety is often referred to as a panic attack, and it's annoying when I hear it.
Many females in my family have severe fibromyalgia. It sadly runs through the generations.
The symptoms of severe pain, exhaustion and brain fog are very debilitating and poorly understood and diagnosed until comparively recently.
Now it seems that anyone with a bit of rheumatism has 'fybro'.
I guess that getting a proper diagnosis of any condition is only helpful if you're going to do something about it.
By attaching a label of ADHD to describe various behaviours may give some understanding to the person, and people close to them, but I guess it's only useful if the person is able to try and control the negative traits by self awareness.