When Angie Ng started experiencing breathlessness and chest tightness during a church service in 2022, a heart attack was not what came to mind. As her mother was unwell and hospitalised at the time, the then-54-year-old attributed the symptoms to stress, as she had been feeling emotional. Even when she started hyperventilating and panting, she did not think otherwise. "It never crossed my mind that these could be symptoms of a heart attack. I thought I was undergoing stress or a panic attack," Angie, a member of the Singapore Heart Foundation (SHF)'s Wellness Centre and freelance facilitator told AsiaOne. The discomfort lasted about 15…