Should my sister-in-law be concerned if others are suggesting that her son should be checked for autism or adhd? She feels that her child is normal but her mom, my mother-in-law seems to be certain that there is a problem with the child. He's 3yo, a suuper active one, knows the alphabet and numbers bec. he constantly watches using ipad, he cannot be reprimanded to do this and that etc.., he's somewhat "immune" to pain, he doesn't communicate or answers questions asked to him but commonly recites lines from videos he watched. I don't know how to advice my sister-in-law without hurting her feelings.