Dolly Parton, 80, Health Concerns After Vegas Cancellation

shared an update on her health after canceling her six-date residency, Dolly: Live in , at Caesars Palace's Colosseum.

The 80-year-old country legend admitted she's 'always had problems with my kidney stones' but for the past three years her immune system and digestive system 'got all out of whack' and now need to be 'rebuilt and strengthened.'

'The good news is I'm responding really well to meds and treatments and I'm improving every day,' Parton - who boasts 28.8 million social media followers - said Monday.

'Now, the bad news is, it's gonna 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.

'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!'

The national treasure - who's only a Tony Award away from EGOT status - admitted she still 'has some healing to do' but she has 'great doctors,' saying: 'I'm doing really well and they assure me that everything I have is treatable, so I'm going with that.'

And while Parton failed to mention her Las Vegas cancellation, she did promote her Pigeon Forge theme park Dollywood, upcoming Nashville museum/hotel and upcoming Broadway musical, DOLLY: A True Original Musical, she's reworking ahead of its fall/winter opening.

'I am still working. I still do videos, I still record,' the godmother of Miley Cyrus - whose last public appearance was on March 13 - stressed.

'The good news is I'm responding really well to meds and treatments and I'm improving every day,' Parton said Monday. 'Now, the bad news is, it's gonna take me a little while before I'm up to stage performance level'