On Thursday, Thanksgiving Day, about noon, I consumed turkey, mashed potatoes, gravy, corn, and three whole-wheat rolls with real butter. I was too stuffed for dessert, and so brought back home half a pumpkin pie for later consumption.
About 5:00 p.m., when out with someone else, I put down a whole entire 16" double pepperoni pizza. The pizzas were on "special" for ten bucks apiece, and the senior business partner had another one, with everything.
I've suffered since. The caloric intake must've been enormous for a single day, but I don't worry about that; I got a long ways to go, before worrying about surplus calories.
There haven't been any intestinal or stomach-gas effects, just the sense that one's been hit in mid-section by a cannonball. It's gone on for about twenty-four hours now.
I don't think I'm going to do this again.