Is Quilivant a stimulant? I've never heard of it.

I think stimulants can cause anxiety, esp. if the dose is too high. But the worst thing that can happen is you try it, it does not help or you see bad side effects, you take him off, and are back to square one. You might even find that the meds settle him down and he is less anxious. You never know til you try it.

I'm not sure how much the school knows but if he's not on a 504 plan or IEP it's up to you how much you share with them. Most of DD's teachers know nothing about her ADHD and she does so well on meds they would have no reason to guess. I tell all the regular classroom teachers when she starts each new year so that they can keep me informed of how things are going and if there is anything strange happening that might be due to the meds, but not the others who only see her for a short period of time. I don't think anyone thinks anything of the ADHD, and the teacher last year thought she was doing great, and was uninterested in even talking about it.

hard to say if ADHD is on the rise or if it is simply diagnosed more. Kids with ADHD have higher levels of pesticides in their systems (on average) so there is probably a environmental component to it (maybe multiple unknown things), but also genetic. The older generations were probably the ones who got paddled a lot in class and labeled the troublemakers, but not diagnosed.