osmophobia

noun

os·​mo·​pho·​bia ˌäz-mō-ˈfō-bē-ə 

: intolerance of or hypersensitivity to smells

Stress aggravated her headaches. She also had associated symptoms of nausea, vomiting, photophobia, phonophobia, and osmophobia.

—James D. Collins

also : aversion to or dislike of odors

Migraineurs and other people with headache, particularly those who have odor triggers may develop a fear of or aversion to certain smells, called osmophobia.

—Kerrie Smyres

Word History

Etymology

Greek osmḗ "smell, odor" + -o- + -phobia — more at osmium

First Known Use

1842, in the meaning defined above