Hello. I will try my best to explain the issue my cat Princess is having. We have guessed her age to be between 11yrs old-14yrs old. Last week her body/stomach are started moving a lot as she was breathing. We took her to the vet and they did blood work( which came back good) and gave her an antibiotic and B12shot and also prescribed 1/8 of a tablet of aminophylline twice a day and one tablet of clavamox every twelve hours. After a few days she wasn't eating enough to give her the clavamox so we took her back to the vet and they gave her another antibiotic and b12 shot and she seems to be doing better but the breathing still speeds up every now and then. If it continues they are going to do a chest X-ray. We will probably take her to the feline specialist clinic in a few days when we get paid again. She went there last year because she was throwing up and not eating enough and she had a multitude of test and blood panels and also an ultra sound and everything came back normal. I forgot what pill they gave her for a few days and she stopped throwing up and started eating normal again. What might the breathing trouble be? It has us extremely worried. She is our oldest kitty and the first one we took in.