One of the main factors that made me decide to go get a diagnosis at 30 is I would ask a coworker a question and struggle, I mean REALLY struggle to stay focused just to hear the answer to the question I just asked them. Like, I asked them, wtf belrsin??? Sometimes corrections in sleep and diet can make a difference here and there, at least for me, but if you've tried everything and literally are suffering from it, go get checked. Because if you do, and get medicated, you'll feel like a god damn superhero. It is insane the difference it makes when you've been dealing with your symptoms for decades.