I just recently adopted a 2-3 year old stray dog. I have had her for about 5 days and she her stool is yellow and soft. She usually goes to the bathroom about 30 minutes after she eats. She does tend to eat a lot of grass when we have her outside walking around, but the pound states that is normal for stray dogs. They also was unable to give us a specific type of dog food since they have a lot of it mixed since they are donations. Is this a temporary issue because we brought her to new home with a new dog food? Or could there be a bigger issue going on here?