The 18-year-old actress and singer spent time in rehab herself last year when she sought help for eating and bipolar disorders, and according to the New York Post, her mum Dianna Hart de la Garza has followed in her footsteps.
A source told the newspaper, 'It has been a tough year for Demi, and her mum has been a constant source of support. But fame has also taken its toll on her family. Now [that] Demi is strong again, her mum could take some time to deal with her own issues.'
And adding to her heartache, the 18-year-old is also believed to have split with Wilmer Valderrama, 31.
'The age difference meant they were in completely different places in their lives,' said an insider.
A rep for Lovato said, 'We do not comment on her personal life.'