Emetophobia

Emetophobia (from the Greek εμετός, to vomit, and φόβος (phóbos), meaning "fear") is an intense, irrational fear or anxiety pertaining to vomiting. This specific phobia can also include subcategories of what causes the anxiety, including a fear of vomiting in public, a fear of seeing vomit, a fear of watching the action of vomiting or fear of being nauseated. Emetophobia is clinically considered an “elusive predicament” because limited research has been done pertaining to it. The fear of vomiting receives little attention compared with other irrational fears, yet it is the fifth most common phobia.