May want to make sure it isn't feline herpes... my cat, Jasmine, has it...apparently it is common, and can be spread quite easily (not just an STD). Jasmine had to have eye surgery a few years back. Since she's allergic to steroids we have to buy her vitamins to add to her food. It is a pain in the butt for all of us. Anyway, just mentioning this because one of the first signs she showed was sneezing/really runny eyes and breathing really hard. Don't wait too long to find out what's wrong...if you think your cat is having problems, schedule a vet appointment. I almost lost my Jazzy and I can't imagine what life would be like without her.