After all the tests, the IV, and everything else, he was released. NOTHING showed up. I called the aunt (she's a paramedic in KY), and she suggested a food allergy - probably milk, since Grandpa is allergic (and so was Dad). :hmmmm:
Now, I LIMIT milk at home, because of the asthma issue. I didn't think to remind Granny - the kids are hers for the week, she likes to spoil them, so :shrug: I didn't even THINK allergy......
We're going to watch him, and switch to goat's milk completely when the does freshen (which we were going to do anyway - but now there will be no gradual change. It'll be a complete one.) I'll be more vigilant about the milk comsumption - and if it happens again I'll try to do a quick food diary. (It's happened before, but never with nausea/vomiting. I usually lay him down and watch him - some Tylenol if he needs it. I just never noted it - kids get stomach aches, you know?)
The rest of the day was uneventful. I've been winding yarn - I'm going to crank out some more socks during the Cowboys' game.