[kvee]

Susie was horrendously gassy when I had her on Wellness Puppy. Maybe because of the rice and barley? The food was obviously not agreeing with her. So perhaps finding ingredients in your dogs diet that could be causing some chaos internally.
She is also a gulper, so I got her a busy buddy squirrel (the kong “beehive-looking ” toy dispensed the kibbles too fast. The Busy Buddy squirrel has some tabs to have the dog actually work for his/her food.

Good luck!