The Gu Roctane Gel I've been trying out wasn't the culprit for my gurgly tummy. (And the pineapple flavor is actually pretty tasty, though I could pass on the stickiness and the bright yellow color.)
What time of year is it? Apple cider time! I love real apple cider. Not the silly clear apple juice pass offs, but real, tangy, cloudy, honest to goodness cider.
While apple juice causes a lot of people intestinal "distress", I've never had a problem with it.
Perhaps all the fiber in my favorite apple cider caused the problem? :D. Oops. Lol.
I've just got to remember not to drink several glasses in a day's time, no matter how much I love the stuff. ;)