The mum-of-five had the 'week from hell' after her children were in a car accident last Tuesday.
Thankfully Kerry's children were fine, but it's been alleged that the accident followed the news that the 36-year-old's mum Sue has been diagnosed with a potentially fatal heart condition.
According to insiders, Sue has Ischemic heart disease which can lead to heart attacks and angina.
A source told the Daily Star: "They've had their differences over the years but they are very close and Kerry would be devastated if anything happened to her mum."
Friends are said to be concerned about how Kerry will cope with this on top of Molly, 13, Lily-Sue, 12, Heidi, eight, and seven-year-old Max's crash.
The source added: "Luckily the children were OK but it was understandably a real shock for Kerry.
"On top of finding out about her mum it's all just been a bit much. She is so worried about Sue."