The Masked Singer star and I'm a Celebrity ... Get Me Out of Here! contestant appeared on the show on Tuesday morning and revealed she had been hospitalised twice this year due to Atrial fibrillation, a condition that causes an irregular and abnormally fast heart rate.
According to the Mayo Clinic, the condition can lead to blood clots in the heart and increase the risk of stroke and heart failure.
"I don't know where I have got that. It has just appeared. The doctors say I need to be weaned off alcohol and coffee, and that is hard," she said.
The former sports star added she had struggled with the condition and was on beta blockers to manage her heart rhythm, however they were making her tired.
"There's a lot going on," she said, adding she had a number of upcoming events to attend.
Lisa has had a very tough few years, with her daughter Jaimi tragically passing away at the age of 33 in 2020 after a battle with a long-term illness.
The star was hospitalised after her daughter's death when she suffered from chest pain last year, however she put it down to "heartache".
"I’m in hospital. It’s day 5 after coming in with chest pain, a wide squeezing band around my chest and back. All my tests are good. Everyone is stumped," she wrote on Instagram at the time.
"But you can’t test for heartache."
In an interview with ABC's Australian Story earlier this year, Lisa said she was still trying to process her grief.
"Jaimi was only 33, she had a whole life to live," Lisa told the cameras as she began wiping away tears.
"I haven't been able to talk about it because you can see what it does to me.
"All I've done for two years is sit and cry and eat... you know I feel like s**t."
Viewers praised Lisa for being so open with sharing her story with one Twitter user writing, "I laughed with her remembering her achievements and cried along with her as she spoke of her pain at the loss of her beautiful Jami. Thank you Lisa."
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