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Following last night's 2018 Billboard Music Awards in Las Vegas, the singer was "feeling sick" and checked herself into a hospital. After running "a lot of tests," Cabello said doctors told her she was dehydrated and had a low-grade fever.
"The doctors have told me I really have to get rest otherwise I won't get better," she explained in a statement, "I'm so sorry to let you guys down and I promise I will make it up as soon as I can! I guess sometimes I just push myself too hard and I promise I'm gonna take better care of myself but anyways!!!"