I would describe that person as being narcissistic

Narcissist.

noun

1. a person who is overly selfish.
2. Psychoanalysis. a person suffering from narcissism, deriving erotic gratification from admiration of his or her own physical or mental attributes

Is it feasible to explain the “physical” aspect of a question?

What adjective has an excessive interest in one’s self/personality and

one’s

physical appearance?

I don’t know what to Google for the definition. We’ve

had different definition, but I’m not found in google search either.