The first sign of exhaustion came in the form of an accidentally tweeted text from the 20-year-old pop starlet.
'I'm miserable,' the We Can't Stop singer wrote to someone named FEFE on July 23.
'Been crying myself to sleep. Taking a zany trying to pass out. Goodnight.'
After deleting the post, referencing the anxiety drug Xanax, Miley wrote: 'Never mind. Realized I’m just an idiot & somehow I butt tweeted my conversation. Missing home.'
The former child star also had trouble sleeping due to her jet-lagged lifestyle on July 25 writing: 'Can't sleeeeeep.'
Miley then nearly missed a conference at the offices of Berlin's BILD newspaper due to 'sushi food poisoning.'
Just kidding: The 20-year-old pop starlet
quickly deleted her tweet about 'crying herself to sleep' and popping a
'zany to pass out'
But two hours after cancelling, Cyrus recovered enough to don a red frock for the interview but tweeted an apologetic warning.
'I apologize in advance to any reporters I may puke on or get sick #norestforthewicked,' she wrote to her 12.9 million followers.
The Party in the USA hitmaker admitted she's been 'working too much.'
'If you’re aged 10 it's "Miley"': Earlier this month, Miley opened up to Mail Online about referencing the drug 'Molly' aka MDMA in her new song
'I’ve been traveling for the past two weeks,' Cyrus sighed.
'I flew from L.A. to New York, then to Miami, back to L.A., then to Canada, then to L.A., then to New York, then to London, then here, and somewhere in between I went to the Bahamas too. I forgot that. My life is totally crazy!'
Earlier this month, Miley opened up to Mail Online about referencing the drug 'Molly' aka MDMA in her new song.
'I’ve been traveling for the past two weeks,' Cyrus sighed.
'I flew from L.A. to New York, then to Miami, back to L.A., then to Canada, then to L.A., then to New York, then to London, then here, and somewhere in between I went to the Bahamas too. I forgot that. My life is totally crazy!'
Earlier this month, Miley opened up to Mail Online about referencing the drug 'Molly' aka MDMA in her new song.
Fishy? Miley then nearly missed a conference at the offices of Berlin's BILD newspaper on Thursday due to 'sushi food poisoning'
'If you’re aged 10 it’s "Miley," if you know what I’m talking about then you know,' Cyrus revealed.
'I don't think people have a hard time understanding that I’ve grown up. You can Google me and you know what I’m up to — you know what that lyric is saying.'
The bottle blonde, whose net worth is $120 million, has been promoting her new single We Can't Stop, off her upcoming fourth studio album for RCA Records.
The 'twerking' starlet underwent a drastic hip-hop makeover over the last few years, which MTV cameras will soon capture for a one-hour documentary airing this fall.
The Hannah Montana star's roots in country music run deep - her godmother is Dolly Parton and her father is Achy Breaky Heart crooner Billy Ray Cyrus.
Her globe-trotting lifestyle has surely also been a challenge for her impending nuptials to fiancé Liam Hemsworth.
Country to twerk-y: Miley underwent a drastic
hip-hop makeover over the last few years, which MTV cameras will soon
capture for a one-hour documentary airing this fall