I was just about to call the emergency doctor because nothing I did would calm him down, and then he eventually calmed down. He's never done anything like that before - he was crying as though he was in pain and wouldn't let me hold him at all, just kept writhing and pushing me away - and then just rolled on the floor sobbing. All the things that would normally distract him and calm him down quite quickly just didn't work. Is this normal behaviour, like a kind of tantrum? Or should I have him checked out to make sure he's not in pain? He's absolutely fine now but it was really upsetting at the time, especially because he wouldn't let me hold him or touch him.