Identiphobia
The fear of bearing a shocking resemblance to someone whom you despise.
I was really upset to realize I looked sort of like Taylor Swift, I am starting to have Identiphobia.
Identiphobia
The fear of looking like someone else, who you know or someone else on the street. The fear of being identical in some way to some one.
"Is she really wearing the same shirt as me, I have to take it off... I have identiphobia."