I had the same problem in my first few weeks on BFL. Had a really hard time getting a few of the meals off the fork and into my stomach.

I would say that your stomach pains is more likely related to your new eating habit and not so much to your free day.... It takes a while for your body to adjust to new eating habits and begin to realize that you have a consistent food intake. Once you get over that hump you'll start to appreciate those six meals a day.

Kiki

P.S. I've had those stomach pains after a free day but that usually lasts only for one day... that is the joy of having one day to live it up!