growth spurt?

big guy has been tanking food the past few days.  for instance, we went to reading terminal market on new year's eve to see the model train display.  big guy ate the following in this order: soft pretzel, chocolate ice cream with sprinkles, banana, apple, corned beef, and a chocolate chip cookie. Hey- don't judge, it was a holiday.  And then the next morning we had a celebratory breakfast- pancakes, bacon, and mixed fruit.  tanked.  dinner was pasta with meat sauce, toast with butter, broccoli.  tanked.  mind you two huge poops came out today.  but his teacher said he got taller over break!  so, growth spurt?