Thank you all for your suggestions....My Kallie slept better last night. I woke up several times when her wheezing got loud, but she didn't have the forced breathing episodes from the night before. My vet suggested I up her pred a little until he sees her on Friday. Yes, x-rays and an ultrasound were taken last week. The sudden onset of her breathing problems is what is so troubling. No liquids were found in her lungs. I know she is overweight and we are both working on this. Her treats consist of the pill pockets I got from the vet that I stuff her pills into. She is more enthused about eating those and I don't have to force her pills down her throat. I worry about what I feed Kallie these days because of all the food recalls. I am afraid that what isn't recalled today, will be tomorrow. Kallie is also diabetic. As I left for work this morning, she was purring and the sounds she made were not enhanced by wheezing or strained breathing. Something hopeful.