Tila Tequila Suicide Scare -- 'She's Tried to Kill Herself All Week'

Tila Tequila was rushed to the hospital last week ... after her roommate called 911 and said the reality star was hellbent on doing herself in ... TMZ has learned.

Law enforcement sources tell TMZ ... emergency responders came to the home at 1:30 AM on Wednesday ... and Tila was taken by ambulance to St. Joseph's hospital in Burbank, CA.

We're told the roommate told cops Tila had "tried to kill herself all week."

Sources say Tila was in and out of consciousness in the house ... and officials decided she needed psychiatric help, stat.

Tila was released ... but the drama didn't end there. Last night, Tila's manager had a sneaking suspicion something was terribly wrong, so she called 911.

Cops went to Tila's home to do a welfare check, but Tila refused to open the door. Tila then called 911 to find out why officers were at her home ... and explained she couldn't answer the door because she was in a wheelchair.