My DS has started to "zone out" in the last few months, usually at dinner time, mid mouthful. He'll be looking directly at me or DH, but nobody's home IYSWIM.
He doesn't respond when we talk to him, and his eyes remain open, but if we wave or touch his shoulder to attract his attention he snaps out of it, with no memory of the spaced out time.
He's usually zoned out for a few seconds to a minute.
Is this normal, for an 11yo?