Selena Gomez
In early January 2014, it was reported that Gomez had been battling lupus, an autoimmune disease that can cause facial swelling, fatigue, headaches, and joint pain for more than two years. Gomez required a kidney transplant as a result of her lupus diagnosis. Her close friend, actress Francia Raisa, donated her own kidney to Gomez in summer 2017.  After the transplant, one of Gomez' arteries flipped inside of her, which required emergency surgery.Then, she went to rehab in 2018. Selena was diagnosed with Lupus in 2014.