i am 18 and have adhd it is true adhd is atention defficet hyperactivity disorder but what most of us dont reaise is that adhd is more common than we all think i know of several people who are adhd but dont seem like it at all. heres a little known fact did you know that albert einstine also had adhd??? what might have seemed as anxiety is if it was diagnosed corectly as ahdh is in fact adhd your son might have just outgrown it i have had to deal with mine till this last year and i am 18 now shortly after i turned 18 however i took myself off my adhd meds and quit cold turkey to devastating side effects for a couple of weeks i was to hyperactive but after a while i got use to not taking my meds and like your son i mellowed out some people outgrow it while they are still young. for others like me and your son it takes awhile longer hope this has been some help to you.