Kerry Katona checked into The Priory last night battling another bout of depression.

The ex-Atomic Kitten star has suspended filming on her MTV reality show Crazy In Love to concentrate on getting better.

Having found out through the press that husband Mark Croft cheated on her last year with a barmaid, troubled Katona is said to be distraught after stress finally caught up with her.

She is also alleged to have taken cocaine at a New Years party, despite being seven-months pregnant.

A source tells the Sun: “She’s been locked away in her bedroom for days just staring at the wall — severely emotional and depressed.

“Everything she was reading in the Press has built up.”

Spokeswoman Nicola Phillips, of Max Clifford Associates, said: “Kerry has not suffered a nervous breakdown.

“She suffers from bipolar disorder and is just feeling a little down.”

Katona has previously been in The Priory three times to be treated for depression and alcohol problems.