Something Yummy For Your Tummy-- Pizza Edition

Again today, Titus was ULTRA sensitive at mealtime. I really wasn't being obnoxious at all! He had been awake for a while, but not too long. He was all finished eating, so his tummy wasn't hungry anymore. I wasn't being loud or making faces. All I did was play our usual high chair game... He bats on the tray top and then I do it. He always thinks it's a hilarious game, except today. I started the game and then he just made this cute little pathetic face and burst into a puddle of tears. I'm sure it's just a little phase of some sort, but I still can't figure out what the trigger is to make it all begin. Is he geniuinely unhappy? or just overcome by baby emotions?
???