Okay, so you seem like you're involved with a lot of ADHD blogs, so maybe you'll be able to answer this. Looking back at my childhood, I had a lot of problems that are highly correlated with ADHD, but I was able to keep it in check enough that no one really noticed. It got a lot worse in my teenage years, though, and hasn't let up since then. Is that common? I've always been under the impression that ADHD symptoms faded some with age.
adhd is different for everyone. some struggle more in childhood, others begin to crumble later in life. which is why a lot of people get diagnosed much later in life even though the symptoms have always been there. you can only ignore/keep under control something so long until it has the tendency to affect aspects of your life. adhd symptoms don’t fade for everybody, for many they change over time so hyperactivity turns into mental restlessness and so on.