I have seen most of the ADHD child eat lots of chocolate,which make then hyper,they are stubborn,over pampered by parents and also language issues (communication by single words) You can work on his turn taking skills /waiting and also on language skills by different games on tablet /i pad Diet also play an important role in ADHD. Still if you want more guidance you can consult Speech therapist/clinical psychologist/develop paed

Your son can be in spectrum but not necessary. You should consult with speech therapist or developmental pediatric.

It is not recommended to diagnose 2 years child as ADHD. But still if you feel your child is slightly hyperactive kindly consult nearest Speech therapist.