A vet visit is the best.
One of my cat has IBS (she had soft stools and was gassy) so the vet gave her Hill's prescription diet I/D then I slowly switched her to California Natural chicken an brown rice and she has been doing well since. I didn't like the Hill's PD because of the ingredients (corn and by-products). She also has problem expressing her anal glands which I had no idea but all I know her butt always smells and looks "raw". The vet taught me how to express her glands and she got an antibiotic shot. This was about 2 months ago and she hasn't stink since. My vet recommended me to express my cats every 2-3 months and it will stink like skunks so wipe with some baby wipes.
One of my cat has IBS (she had soft stools and was gassy) so the vet gave her Hill's prescription diet I/D then I slowly switched her to California Natural chicken an brown rice and she has been doing well since. I didn't like the Hill's PD because of the ingredients (corn and by-products). She also has problem expressing her anal glands which I had no idea but all I know her butt always smells and looks "raw". The vet taught me how to express her glands and she got an antibiotic shot. This was about 2 months ago and she hasn't stink since. My vet recommended me to express my cats every 2-3 months and it will stink like skunks so wipe with some baby wipes.