When Arlene Leitch went to her GP complaining about heart palpitations she was relieved to be told they were likely to be a result of anxiety or drinking too much caffeine.
However, the 32-year-old mother-of-one, from Port Glasgow, then suffered a cardiac arrest one night as she slept.
Doctors later said the quick reaction of her husband Barry probably helped “save her life”.
Arlene has now been told she has a rare condition known as ARVC (Arrhythmogenic right ventricular cardiomyopathy) and wants to raise awareness about underlying heart issues that can often go undiagnosed.
She told BBC Radio Scotland’s John Beattie programme: “I was in my 20s when I started getting the palpitations more often.
“They were kind of panicking me a wee bit because they were quite intense.