Dolly Parton is canceling her previously postponed Las Vegas residency due to ongoing health issues, but tells fans, “I’m improving every day.” The 80-year-old Country Music Hall of Famer posted an Instagram Reel on Monday (May 4) and gave fans an update on her shows, her health and other projects she has in the works. “I have some good news, and a little bad news. But the good news is I’m responding really well to meds and treatments and I’m improving every day,” she said. “The bad news is, it’s going to take me a little while before I’m up to stage-performance level, because some of the meds and treatments make me a little bit swimmy headed, as my grandma used to say,” she continued. “And of course, I can’t be dizzy carrying around banjos, guitars and such on five-inch heels and you know I’m going to be wearing them. Not to mention all those heavy rhinestone ou...