Katie is excessively fearful of doing something that will be humiliating or embarrassing when in public. what would psychologists be likely to diagnose katie with?

Psychologists will most likely diagnose Katie with Social Phobia.

Social Phobia is a type of disorder that make people experience unreasonable fear toward interractions with other people.

Having this tend to make people with social phobia to overthinking every single situation which tend to result in self-fulfilling phropecy.