Gastrointestinal Distress Related to Motion in Cats
 
Humans are not the only species to get car sick. Cats also get a queasy stomach when traveling in the car (or even by boat or air).
 
Symptoms and Types
 
Cats show their uneasiness in various ways. The first signs of motion sickness may be:
 

Excessive drooling (ptyalism)
Crying out in distress
Immobility, or acting afraid to move