India, July 22 -- Months after announcing his diagnosis with a rare brain condition, Billy Joel reassured fans that he is not "deathly ill." Back in May, the 76-year-old revealed that he was living with Normal Pressure Hydrocephalus (NPH), a rare disorder which impacts balance, vision, and hearing, per People.

Known for hits like Piano Man and Uptown Girl, Joel told the outlet in a recent interview that he was aware many people were worried about him. "But I am okay," the iconic singer said. "It was scary, but I just wanted to let people know: don't worry."

Billy told the outlet that he first noticed something was wrong when he began experiencing balance issues. He said it felt like being on a boat all the time. After extensive tests we...