A Tauranga man had five heart attacks before he realised something was wrong and is now warning other people to be aware of the symptoms.
New Zealand Fire Service safety and wellbeing coordinator Steve Dyer was 52 when he suffered 11 heart attacks in 10 days.
Mr Dyer said he had three major heart attacks and two smaller ones before going to the doctor.
A heart attack felt like indigestion at an extreme level, he said.
"The first one, I was standing at the kitchen sink and the next thing I had this extreme discomfort and a feeling of loss of energy and strength. When I say extreme, I 100 per cent couldn't control the functionality of my body. My breathing was erratic and my chest was extremely painful to the nearest touch of the finger.