In the last week or so my 5mo DD has started crying (as in big screaming, inconsolable meltdown cries) when other people look her in the eye and try to interact with her. She never used to do this and is generally not much of a crier. The first time was when I had a group of mums and babies over, when she had a huge meltdown, and it's happened a few times since. Is this normal or should I be worried? I'm also not sure if I should be more gentle with her and do less things where there are faces that could loom at her or if I should carry on as normal to teach her it's fine. Thoughts??