Here are some possible reasons why your cat might be gagging, dry heaving, and unable to meow or purr:
* Foreign object: Your cat may have swallowed something that is lodged in its throat or esophagus.
* Hairball: Cats are prone to hairballs, which can cause gagging and vomiting.
* Upper respiratory infection (URI): A URI can cause inflammation in the throat and nasal passages, making it difficult for your cat to meow or purr.
* Gastrointestinal upset: A variety of factors can cause gastrointestinal upset, including food allergies, parasites, and stress.
* Dental problems: Dental problems can cause pain and inflammation in the mouth, making it difficult for your cat to eat, meow, or purr.
* Other medical conditions: There are other medical conditions that can cause gagging and vomiting in cats, such as cancer, kidney disease, and liver disease.
It is important to take your cat to the vet immediately if it is exhibiting these symptoms. The sooner your cat is seen by a veterinarian, the better the chances of a successful diagnosis and treatment.