Quizzed by Nicola McLean, the Loose Women star admitted that she misses her children and struggles to cope with Michael Madsen's "morning moods".
She said: "If I didn't have that knot [in my stomach], I think I could [go on].
"The thought of waking up with Michael's morning mood. It doesn't bother me so much anymore.
"Do you know, I want to go [back to my children]. That kind of thing."
Welch and Madsen have clashed on a number of occasions during their four-week stay in the house.
Celebrity Big Brother's double eviction show airs tonight from 9pm on Channel 5.
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Watch Denise Welch talk to Nicola McLean about tonight's eviction below: