ADHD is a permanent condition, to get a diagnosis one will have to discuss his history in school/college and demonstrate that he had problems with daydreaming, getting homework done, had behaiverial problems etc. I was diagnosed with ADHD when I was about 35 and it was evident from my academic history. History of daydreaming, procrastination, seeming lack of motivation etc (not a discipline problem). Talk to a Psychologist or certified counselor.
ADHD by any means isnât necessarily a permanent condition but in some ways it is something that will have be managed for life. It passes with age sometimes while others might have to deal with a longer duration of symptoms. Many people only discover they have ADHD when they become adults. They might go through their childhood and teen years unaware of their condition. That's why it is essential for parents to know if their kids are suffering the said condition early on so that specialists will be able to provide the appropriate treatment for them. Here's an info on ADHD treatment for you to read and find out any possible treatment for this type of condition.