Lot to unpack from what you said, but whatever you want to make of the classifications (created by people much more knowledgeable than you or I in this field, but with plenty of conformist baggage), my time with ADHD or whatever you'd like to call it has absolutely shaped the experience of my life, and taking medication has objectively helped. My brain objectively processes things differently from whatever you'd like to call the median of people, and functions different with different chemicals. Personally, because of this medication that allows me to focus, I have been able to remain on par with my peers, if not with more elbow grease -- so I quite benefit from the label, weird and fluid as it may be.
An interesting fact is that caffeine will often affect the "ADHD mind" differently. It's been reported to have no effect, or have very limited effect, or make people even sleepy, but almost always something non-standard. Once, in high school, without the supervision of my parents, I drank maybe 2 red bulls and 2 cups of coffee, 1 black. I remember feeling disappointed it didn't work, and I didn't feel any rush of energy.
An interesting fact is that caffeine will often affect the "ADHD mind" differently. It's been reported to have no effect, or have very limited effect, or make people even sleepy, but almost always something non-standard. Once, in high school, without the supervision of my parents, I drank maybe 2 red bulls and 2 cups of coffee, 1 black. I remember feeling disappointed it didn't work, and I didn't feel any rush of energy.