reminds me of The Adoration of Jenna Fox by Mary E. Pearson.
In the not-too-distant future, when biotechnological advances have made synthetic bodies and brains possible but illegal, a seventeen-year-old girl, recovering from a serious accident and suffering from memory lapses, learns a startling secret about her existence.
tbh, i actually haven't read it yet, but it sounds similar to what you're looking for. and plus, i heard it's good
and if you're into the whole body swap thing, the Airhead series by Meg Cabot is amazing!
Sixteen-year-old Emerson Watts, an advanced placement student with a disdain for fashion, is the recipient of a "whole body transplant" and finds herself transformed into one of the world's most famous teen supermodels.
it's a great chick-flick-ish book and if you love Meg Cabot, definitely give it a try.