My cat lets out a cough at night as if he is going to vomit but he doesn't. Following his cough, he weezes as if his breathing is restricted. I'm not sure what it could be. He coughs about once every night so it is not a constant cough but I am con cerned because of the weezing that follows.
It sounds like your cat has feline asthma and should be seen by the vet asap. vetcare