You searched for: “anablepophobias
anablepophobia (s) (noun), anablepophobias (pl)
An excessive apprehensiveness of looking up at high places: Generally those who have anablepophobias avoid glancing up at the tops of tall buildings in cities and at the tops of mountains while in the country.

Anyone with an anablepophobia can become overwhelmingly uncomfortable and shaken, sometimes having symptoms associated with panic attacks, such as palpitations, sweating, dizziness, and difficulty in breathing.