When we got Lola she was on a horrid Big Lots brand of cat food. Cats Pride I believe. Once we took her to the vet, she said she was overweight and told us to get Science Diet Hairball light dry..... well....being new cat owners we did that....and then the but scooting began. She was having lose stools....So, I changed her to Science Diet Hairball wet for a few weeks....same issue. Then went to Blue Bluffalo Wellness, same issue. Now she is on Wellness Core...same issue if not worse. Each transition has been slow and we have had her on it for several weeks fully each time for a good trial period. Any suggestions? FYI she is a 2 yr old MC Mix, almost 13 lbs, and I am gone for 10+ hrs a day, hence the dry food ( even though we did try the wet ).