The 26-year-old said on her Instagram Story on Saturday that “my throat and head are still in so much pain.”
While she sounds OK, “I’m just in a lot of pain and it’s difficult to breathe during the show,” she says in a message to her fans. “I just really don’t know what’s happening with my body right now and need to figure it out.”
Grande says she plans to see a doctor soon.
She adds: “I’m scared that I might have to cancel some things, so this is kind just a heads up of like I don’t know what’s happening with my body, and I’m really disappointed and freaked out of why I can’t get better because it’s been over three weeks at this point.”
The Associated Press contributed to this report.