Rowena Newman did boot camp twice a week, had good blood pressure and ate well.
Being a single mother in a high-pressure marketing job, going to bed exhausted was not unusual.
But one night she was so tired that when she tried to stand, her leg muscles weren’t working properly.
It was a shock when she woke up at 3am the next morning feeling “something catastrophic was happening”.
“It felt like I had a butterfly in my chest,” Ms Newman said.
The 47-year-old felt her heart fluttering, but not pumping.
The Sydney-based mother called out to her 11-year-old daughter Claudia,