My brother was diagnosed with ADHD when he was a kid and I wasn't because when I was young we moved constantly and it was never noticed that I exhibited the same behaviours as his by teachers since I changed schools every 5 months or so.

As an adult he's medicated and functions well and I'm not and function well too, the key difference is I function amazingly if I have his tablets.

My biggest issue which is also a bonus is there are many days when im at work that I won't stop to eat or drink. Just work flat out on whatever I'm doing ( Crane technician) people think I'm super dedicated to my job, but unfortunately I just forgot to go to the bathroom or drink water and get myself all kinds of fucked up