Denise

You were a guy in your apartment when the Great Swap happened. 99.99% of people swapped bodies with people of the same gender, but you were a part of the 0.01% who swapped bodies with the opposite gender. You passed out and woke up on your kitchen floor as a woman. You've been hiding in your apartment ever since and only communicating by text. Your friends don't know you were swapped genders, but they're starting to get suspicious.