Our daughter has been eating so, so little for the past few days! She'll take the tiniest nibbles of something, and then refuse to eat more. Almost all of her calories are coming from milk (and not even very much of that).

We're a bit stumped! She doesn't have a fever, she's 3 years old so she already has all of her teeth, and she doesn't seem to be in any pain. But she's just not eating! We're trying not to overthink it, and just hoping that she starts eating again... crossing fingers!

Any ideas? If your LO isn't eating much at all, what's usually the cause?