Hi, Jo: As for the first part of your question, I'm not sure if the stomach is larger from overeating or not...I certainly think mine is! Yes, after surgery it is smaller than the average stomach; my surgeon said that it is taken from approximately the size of a football and made into about the size of an egg. Now, I sit here looking at my food, imagining just being able to eat the size of an egg, and I'm amazed. I can't wait until I have my surgery (08/19/03, lap RNY) so that I won't be able to eat like a pig anymore! Good luck, and God Bless!