The 26-year-old singer was hospitalised twice in the last few weeks for a low white blood cell count, a side effect from the kidney transplant she underwent last year.
Selena was apparently at her home in Los Angeles in the last week of September when the first emergency happened and was driven to Cedars-Sinai Medical Center by a family member.
Reports say that Gomez "freaked out" after learning about her condition and attempted to rip an IV tube from her arm.
Gomez has since been taken to psychiatric facility on the East Coast, where she is now receiving dialectical behaviour therapy.
Gomez "has dealt with depression for a while", "Entertainment Tonight" reported, citing an unnamed source.
Only a few months after that, in the summer of 2017, Gomez revealed she received a kidney transplant from her best friend Francia Raisa due to complications from lupus. Gomez didn't attend the American Music Awards last night and the site notes that her team has been virtually silent recently. "After further monitoring it was decided that Selena would seek treatment at a [mental health] facility", a source told the site.
Selena has been keeping a low profile since announcing that she will be taking a social media break.
She explained: 'As much as I am grateful for the voice that social media gives each of us, I am equally grateful to be able to step back and live my life present to the moment I have been given. The source also said that it was "preventative" to ensure she continued on a healthy path.
"Just remember, negative comments can hurt anybody's feelings".