The Liberty and Big Reunion star and her personal trainer husband Hugh Hanley welcomed their second child, AJ, on 28 February.
But over the weekend, which Michelle has described as the "worst and scariest" in her life, the five-week-old tot was taken back to hospital after falling ill
Michelle said it was a scarier situation than learning she is a carrier of the BRCA2 gene, which prompted her to undergo a double mastectomy and make plans to have her ovaries removed in order to reduce her risk of cancer.
"With everything I've been through mentally and physically nothing, I mean, nothing compares to that of when your baby is sick," she said.
"Our beautiful baby boy has been very looked after in hospital after being diagnosed with viral meningitis and reflux disease just to top it off. He's fighting strong and taking the antibiotics well so far. But at only five weeks old one can only imagine our distress as parents.
"He's very sick and in pain with the reflux.
"The hospital are amazing and he's well looked after. Hopefully we will be able to take our little man home soon. I'm sure we will."
Michelle and Hugh are also parents to daughter Faith, two.
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