All that to basically say income and job descriptions do not inherently say anything about what disorders a person may or may not be suffering from.
A lot of mental illnesses go unnoticed by others because they're often very easy to hide (and you're encouraged to hide them). Thinking that you can't be in the top 5% of earners and are just doing "speed for fun" is like thinking you can't be suicidally depressed just because you are a comedian. Hell, most people were surprised by Anthony Bourdain despite him being open about his depression. What you see is not reality, so don't be quick to judge. You'd be surprised how many peoples mental states are a house of cards but look like they're living in the finest of mansions.
Seriously, comments like the GPs are not only bad takes, but actively harmful. It perpetuates the belief that people should hide rather than seek help. The big issue with mental illnesses is that they are typically extreme versions of normal behavior and we often paint them as unrealistically extreme and constant. They're highly variable and the most common thing to happen is people only seek help when they're in the spiraling states, where they are incapable of getting that help, but will not seek it out when they've normalized.
Plus, you don't know if they're in that top 5% post medication and would not have been prior. You don't have the counterfactual power to make such judgements.
I don't know if I have ADHD, but I've always been terrible at getting out of bed.
It bugged me so much I ended up building an app[0] to force me to get up. If I didn't get up and scan my toothpaste barcode within a few mins of my alarm, I'd have to pay $10.
It also has cheat detection so I can't just turn off the phone to avoid getting up. Alarms are stored in the cloud and lock 1 hour before going off so they can't be changed.
Many of my users tell me they have ADHD so it seems likely I fall somewhere on the spectrum.
[0] Nuj Alarm Clock - https://nuj.app
Surviving only because you've structured your life to revolve around the limitations of your disorder isn't a sign that everything is fine.
Adderall and its contemporaries aren't speed and I promise you it isn't fun. Stimulant medications are miserable to be on, it's just that not being on them is worse. That one time you took high-dose adderall in college is not at all reflective of what the experience is like.
Is that person just having fun on speed in your view?
Anyone that dismisses this as being a scatterbrained person that likes to do speed is clearly not trying to help anyone and are only here to tear them down and make them hate themselves more than they already do. The world would be a better place if trash like you was collected and disposed of. Grow up, asshole.
Nit: Self-diagnosis is the first step towards a formal diagnosis. You don't go to the doctor to get antibiotics before self-diagnosing that you're sick.
That said, as useful as a formal diagnosis is (getting proper help, and even meds), don't skip it if you can afford to do it.
Everyone is late sometimes, are you so chronically late that you’re losing or at risk of losing your job despite doing things that normal people would do (e.g. getting up earlier, setting alarms etc), that could be (along with other symptoms) an indication of ADHD.
Everyone is sad sometimes, even deeply so. Are you so down that the very act of getting up and making yourself food seems too much? Are you so hopeless that even doing something you love makes you feel nothing? That (along with other symptoms) might indicate you have depression.
Everyone has things that they want to have “just right”, whether it’s a well organized tool box, a clean car or a spotless mirror. Do you find yourself needing to ensure that every dish in your cabinets are sorted properly by size and weight, every day, even if it means missing that important meeting with a friend you haven’t seen in years and even though you already did this yesterday and only used two plates since then? That might (along with other symptoms) indicate that you have OCD.
1. Self-diagnosis is not a diagnosis.
2. Things exist on a spectrum. The definition of it becoming a "disorder" is when it negatively affects your life enough.
During diagnosis a psychotherapist will be tasks with identifying traits of ADHD (IE; Markers), you will not have all markers. Everyone will have some.
Then those markers are investigated to discover how much they impact your quality of life. If it is above a certain threshold in aggregate then you are then diagnosed clinically as having "ADHD" and can be medicated.
What I mean is, for example: You can still have autism even if someone has significantly more severe autistic traits than you have.