R.J.
My son does that. Its his "tell"... But only when an illness reaches a certain level of seriousness.
I loooooooooove it!
I have to be fairly careful not to depend on it too much ... But for certain sure... If its there, he's *very* sick.
((He's ADHD, and as such, has sensory issues. He's been mildly sick for a week, STILL acting mildly sick, but the spot showed up... So I took him in. Raging ear infection. Which, because of his sensory issues, he didn't even feel. Although his eardrum was about to burst. If we hadn't gone in, it probably would have burst tonight. Whew! Bullet. Dodged.))