Hello! We ended up taking Mr.catto to the vet yesterday. His breathing is normal again after his last treatment but now he was refusing food. I got worried,cuz he loves food. So we took him to the vet yesterday, they did an ultrasound and found out that he basically swallowed something and it got stuck in his intestine, which was weird cuz he did poop and pee normally.. So I was wondering....what it might be? Our house is petproofed. We checked the toys, but every one of them were OK. He did ate a little of his litterbox clumping sand a week ago... and he does not vomit out the hair...so I am wondering if something like this....sand OR the hair blocking the intestines...is something "common"? Like did this happen to other cats ? or it might be something else in there...but then what? He got laxatives yesterday and today we are going back to the vet for another round of ultrasound