I also concur with AJ and Mary. I remember deciding I wasn't going to take my enzymes because I wanted to lose weight (yea, I know, not a very healthy way to do it) in high school. I lasted about a week before the stomach aches and gas convinced me this was not the way to go about things. I'm pretty sure most teenage CF girls go through this at some point for one reason or another. My guess is it won't last too long.