My 10 month old kitten has been making a shapeless poo lately. He was on a medication two weeks ago, but has been off it soon. I told the vet over the phone and they said to mix in white rice with his wet food and that should help. After a week on that, he's still making the shapeless stuff, which I imagine is diarrhea after it dries. He seems healthy to me and is still very active so I'm wondering if it could be worms? He was checked out a couple months ago and was clean so I'm not even sure if he could have gotten them somehow. Any help would be appreciated.