So past couple of weeks ds has started to scream really really loud ( especially when we're in shops) it's so embarrassing for me that I just want to drop everything and go home!! He's started to also misbehave, I used to tell him to carry out simple instructions (tidy toys, sit down, hold my hand when going for a walk) but now he doesn't do any of these & just point blank refuses by moving his head side to side (meaning no) is this normal? Terrible 2s? So confused...