I recently purchased Feliway to help my older cat get used to the new kittens in the home. Since I purchased it my cat has has wheezing, louder than normal snoring (he has snored his entire life), hacking fits, no meow, and over grooming. I think it might be from the Feliway, but I'm not 100% sure. I went ahead and unplugged it. I remember a few years ago he had the same issue under stress. Wondering if anyone has had this happen. The issue only started a day after I plugged that thing in.