it was to get the guy to think it through - the question is more complicated as stated by DocSuleman. In the short term, after a big meal I was assuming more volume in the stomach which would squash everything else up a bit. Obviously once digested and assymylated it depends on what you've taken in, but I'd say that there would be a short term increase in pressure. Looking back -perhaps I was wrong - sorry.
Would there be a very short term increase before the digestive juces get flowing?