Friends and family of the Loose Women star - who has suffered from severe depression, alcoholism and drug addiction throughout her life - are allegedly concerned that her constant feuding with housemate Michael Madsen is starting to take its toll.
© Rex Features
© Rex Features
"To say Denise is struggling would be an understatement," a source noted to the Daily Star. "She's in tears every night - it only takes something small to set her off. Michael only has to comment and she flips. The other housemates don't know what to do."
A close friend added: "Denise has had depression in the past and everyone is worried a pressurised environment like Big Brother could cause her serious problems.
"It's obvious every day is a struggle for her. It's touch and go if she'll make it to the end of the week."
© Channel 5
Celebrity Big Brother evictee Georgia Salpa said while in the house that she believed Welch was "crumbling" under pressure.
Welch also shocked her co-stars by stripping off for a jacuzzi session with 19-year-old Frankie Cocozza.
