Penny is a little gassy sometimes and she has stinky poop. (But it IS poop, so it's supposed to stink)

She is eating Taste of the Wild, Chicken Soup, both dry. And canned Puppy Plate. I tried raw as some of you know. Didn't work so well.(went thru alot of food) I am so afraid to change her now that she is eating well. But if being a little gassy is bad I will switch. I plan on trying raw again soon. I heard the Organic Chicken is a big hit. I sure hope she likes it this time.