The 'Skyscraper' singer has said stories about her health were "blown out of proportion" and she's feeling fine.
Demi tweeted: "Thanks for all the get well messages. I'm fine! Nothing a little chicken soup can't fix!!"
A rep for Demi confirmed to People she'd been taken to an Emergency Room in California over the weekend because of breathing difficulties but returned home soon after is feeling great now.
The former Disney star is in the middle of a massive world tour.
Earlier this month, she tweeted about her music and "sound" and said she'd never felt more excited about her career than now.
"I've never been more confident in my sound. Never been so sure of who I am as an artist. Never felt this hungry and driven... I can't describe my new sound... The only word that comes to mind is authentic. Very very authentic to who I am & the voice I have inside..
"What I can say is this will be my best work yet... Already game changing music and I've barely scratched the surface on creating this album. I am going to sing my heart out more than I've ever sang before.. To the sound that I've spent my whole life trying to identify.. I'm ready.
"F**k trying to make music that will appeal to the masses for the sake of hit songs. It's time to share my lane... MY SOUND.. Because no one can take away my individuality or copy my best work which my fans deserve to see. I'm sorry it took so long to figure out MY channel but it's here... The changes I've made... It's a new journey... A new chapter in my life and I'm so f**king ready. #2015."
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