Half Lovato was "stressed", "overworked" before an apparent overdose, according to the (exclusive) source

Half Lovato struggled seriously before his hospitalization.

The singer "Tell Me You Love Me", 25, was hospitalized Tuesday for a drug overdose, sources said. But before that, another source tells ET that the downward spiral of Lovato started in the spring.

"She repulsed everyone who tried to call or help her, including sober coaches, friends, and management." "The problem is that Demi is more successful than ever, and everyone wants a piece, it becomes a perfect storm … she pushed back all the people who are there to protect."

The nominee GRAMMY, who was on her world tour Tell Me You Love Me when she recidivated after six years of sobriety, faced the pressures of a demanding schedule.

"The more she was stressed and the more she was overworked, the more she wants to escape, do drugs and not stay sober," the source adds, "no one was looking for Demi's interests anymore," she says. repelled everyone. "

The source says that Lovato was working on another album, also documented his life for a YouTube follow-up documentary to his recent release, Simply complicated .

AND reached out to Lovato's management team commented.Tuesday, a representative of Lovato issued a statement, saying: "Half is awake and with his family who wants to express his thanks to all for the love, prayers and support. Some of the information reported is incorrect and respectfully requests privacy and not speculation, because its health and recovery are the most important things at the moment. "

Another source told ET that Lovato's family was eager to As soon as possible .. Watch the clip below for more information: