Ptyalism

Ptyalism (also called hypersalivation or rarely sialorrhea) is characterized by an increased amount of saliva in the oral cavity of your cat while eating. You may notice this symptom especially when your cat eats (you can see blood on food or in saliva). Ptyalism in cats is often caused by gingivitis.

In some cases, drooling may be a reaction to a possible exposure to certain toxins, such as plants or other dangerous substances. However, your veterinarian can help you with diagnosis and an appropriate treatment. In addition, the clinical oral examination requires the inspection of all teeth, because most of the time, it is a symptom of dental disease. 

Shivering and teeth chattering

Chattering in cats may be a sign of oral disease. Unfortunately, this is a painful condition that can lead to holes similar to cavities in the teeth or can destroy the root of the teeth. 

Chattering occurs when a cat eats, grooms or washes their faces and is triggered by pain. Many people think that chattering is normal in cats, but animal experts say that this symptom is actually a sign that your cat is suffering from an oral problem.