"She is feeling much better," a source told E! News, noting that the European leg of the pop star's "Bangerz" tour is still on.
The 21-year-old had been recuperating in Kansas City, Mo., where she fell ill while on tour, but by Monday had been moved to a hospital at an undisclosed location, the website said.
Her current whereabouts aren't yet public, but Cyrus is scheduled to kick off her European shows in Amsterdam on May 2, just barely a week away.
The "Wrecking Ball" singer had been keeping fans in the loop with Twitter messages from her hospital bed, but it's been about two days since her last post.
After a few cranky tweets last week, Cyrus on Friday got a bit lighter when she shared an
"This hospitals full of a bunch of QUACKS (get it??? Quacks) #punnyeveninthehospy #stayinglightlovingandpositive #imissbangerztour #tryingtonotbebitter," she wrote.
That same day, her camp issued a statement postponing the balance of her U.S. tour until August.
"Existing tickets will be honored on the new dates, which include previously canceled and postponed dates," read the notice on the singer's website, which listed the new dates. "Additionally, two tour dates have been added in Pittsburgh and Chicago."