The 25 year old – who is rumoured to be back with on/off boyfriend Justin Bieber – is said to often wake up at 4 a.m. and call her friends, before quickly hanging up whilst in the middle of a sentence.
“It’s really weird,” a Selena source tells In Touch, revealing that the star has been randomly bursting into tears or laughter in recent weeks.
While at other times, she doesn’t leave her bed at all. “She can be there for days,” continues the insider.
“She has been acting erratically.”
Selena previously sought treatment at a rehab centre for anxiety and depression back in 2016, and now friends fear she is in trouble.
Those close to Selena are concerned that getting back together with Justin may be affecting her mental wellbeing.
When asked by her pals what was wrong, the singer and actress admitted she felt like she was losing control.
“Selena told everyone that she knows she is very up and down, but she can’t stop it,” before going on to blame her feelings on the aftermath of her kidney replacement surgery last year.
“She says the reality [of living with lupus) is finally sinking in."
And with Selena’s mum, Mandy Teefey recently admitting she’s “not happy," that Selena’s back with Justin, let us hope better times come sooner rather than later.
Selena has yet to respond to In Touch's claims.
If you or someone you know is experiencing depression call Life Line on 13 11 14 or visit Beyond Blue.