While on vacation with her parents in Cabo San Lucas, Mexico, Amanda Bynes thanked Twitter followers for their birthday wishes and shared a couple of beach-ready bikini pics. "Thank you everyone for all the birthday wishes," the 28-year-old wrote, alongside a photo of herself posing in a bright green swimsuit. Thank you everyone for all the birthday wishes. pic.twitter.com/wePNZbTEAW— amanda bynes (@amandabynes) April 6, 2014 The actress, who emerged from rehab last year, celebrated her birthday on Thursday. She traveled to Mexico for her spring-break vacation from the Fashion Institute of Design and Merchandising, where she's majoring in merchandise product development. Spring break pic.twitter.com/YyP4UDTf3T— amanda bynes (@amandabynes) April 6, 2014 Bynes mother, Lynn, told People last month that her daughter has been doing "extremely well" since she left rehab.