So my DS who is nearly 2 was just standing putting some blocks in a box, completely fine and normal, but then just stopped, stood still, I watched his eyes roll back, he did then like a little shiver to come back to normal and then has gone on playing in his merry little way. It was the weirdest thing to see and I've never seen either of my kids ever roll their eyes back. Only lasted perhaps 3 seconds.
Is this normal?!