Question: My 17 month old son began recently to throw his head against me when he is upset about something. It comes out of nowhere – he just screams and sometimes bangs his head on the sofa, wall, or on my chest. Is this normal? How do I respond? I’m terrified he is going to hurt himself, and also it just looks awful. I try to tell him “NO,” and to distract him, but it doesn’t always work and the tantrum goes on. What do I do?