my son was digonised with ADHD when he was in kinder and they told me i will give you a prescription for the medication i said no i would like to look else where and i got a second option from a paedrition and he said sometimes drs just tell you what you want to here and then give you medicition even when it isnt really neccercery so the paedrition told me to take out alot of sugar (some sugar is fine) but its the colouring and addidives that is added to things that can set alot of kids of, so the dr gave me a long list of things to take away and he was a changed boy in a matter of a few weeks my son is now 11 and i still watch what he has but i let him have a bit more as they say most kids do grow out of ADHD my son was very much like yours he had split his sisters head open (his sister is 2 years older) and he smashed her front teeth now there capped and also has given her a few blood noses. Dont get me wrong its still very hard sometimes my son still gets into one of his moods and nothing can stop him but it might be once a month the rest he is just a normal boy fighting with his siblings and parents
anyway goodluck with it