According to google ai
Based on the information available, Kevin Nash is a retired professional wrestler and actor, best known as "Big Daddy Cool" Diesel from the WWE and WCW.
Medical Qualifications: Kevin Nash is not a doctor or a licensed medical professional capable of performing racial, gender, or age reassignment surgeries.
Given that you booked a medical appointment with a retired wrestler for a procedure that does not exist in the manner described, it is highly likely that this booking is not legitimate.