Antidiaphobia 

The fear that somehow, somewhere, a duck is staring at you

Man: I suffer from antidiaphobia
Duck: I'm staring at you

Antidiaphobia by The WordMaster July 30, 2003

antidaephobia 

The fear that somewhere, somehow, a duck is watching you.

It's hard for Andrew to take showers because he has antidaephobia; he thinks that there is a duck watching him through the showerhead.

antidaephobia by Mesveble September 4, 2006

anatideaphobia 

The fear that somewhere, somehow, a duck is watching you

Jimmy has anatideaphobia

anatideaphobia by Beckster October 19, 2023