I have a 2 year old cat that is having a very difficult time breathing. She doesn't sneeze cough or sniffle she just has a very very difficult time breathing I took her to the vet and had blood work and an x ray taken. X ray was clear, no blockages, lungs were clear as a bell and blood work was also normal. My vet said it didn't look like it was asthma either. She was actually stumped. My questions are Can asthma be seen from an x ray? Her breathing is starting to get pretty bad and I'm wondering what else it could be? What is the normal respitory rate for a cat and how can I check it at home until I can get her to the vet Monday a.m. I would appreciate any information anyone can give me.