"The good news is I'm responding really well to meds and treatments and I'm improving every day," the 80-year-old country superstar said in a short video posted to her official Instagram account.
"Now 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 lit bit swimmy headed, as my grandma used to say."
"And of course, I can't be dizzy carrying around banjos, guitars, and such on five-inch heels - and you know that I'm going to be wearing them," she joked. "Not to mention, all those heavy rhinestone outfits, the big hair, my big ... uh, personality. Lord, those - that would make anybody swimmy headed!"
She did not share too many details about her health but clarified that she had always "had problems with my kidney stones", and her immune system and digestive system "got all out of whack over the past couple three years and they're working real hard on rebuilding and strengthening those".
She also clarified that her doctors have assured her "that everything I have is treatable, so I'm going with that".
In September, Parton announced her first Las Vegas residency in 32 years was going to be postponed due to "health challenges".
She was scheduled to perform six shows at The Colosseum at Caesars Palace for "Dolly: Live in Las Vegas" in December, overlapping with the National Finals Rodeo.
Her dates were moved to this September before being cancelled on Monday.
