hypochondriac
🇺🇸
/ˌhaɪpəˈkɑːndriæk/
🇬🇧
/ˌhaɪpəˈkɒndriæk/
A person who constantly worries about their health, even when there is no real problem.
The hypochondriac checked the internet for symptoms every time he felt a slight headache.
A person who is overly worried about their health, often imagining they have illnesses they do not have.
His constant complaints about his health made everyone think he was a hypochondriac.