Vocabulary:
A discrepancy is a difference between two or more things that should be the same.
Cosmetic is an adjective that means relating to treatment intended to restore or improve a person's appearance.
The phrase "to go under the knife" means to have surgery.
Insecurity means uncertainty or anxiety about oneself; a lack of confidence.
A term of endearment is a word or phrase used to address or describe a person, animal, or inanimate object for which the speaker feels love or affection.
A backhanded compliment refers to a compliment that implies it is not really a compliment at all.