Demi Lovato Demi Lovato

Demi Lovato is thanking her fans for sticking by her while she's in treatment for emotional and physical problems.

"I want to make sure my fans know how thankful I am for all their love, support and prayers during this difficult time. Thank you for standing beside me through it all," she wrote on her Facebook page.

Disney Channel to revamp Demi Lovato series

On Nov. 1, the 18-year old Disney star canceled her worldwide tour to seek medical treatment for "issues she battled throughout her life," her rep said.

Last week, Lovato won the People's Choice Award for Favorite TV Guest Star for her appearance on Grey's Anatomy.