Posted in News I started having dizzy spells at 28 despite being fit and healthy. My GP blamed exercise… until my heart stopped. This is the terrifying condition I really had, who’s most at risk – and how a cold can trigger it August 7, 2025 At 28, Matt Ullmer couldn’t have seemed fitter, or healthier. A competitive amateur cyclist, he would regularly cover distances of more than100km in a single session. https://www.dailymail.co.uk/health/article-14976889/GP-blamed-dizzy-spells-exercise-cardiac-arrest-myocarditis-heart-infection.html?ns_mchannel=rss&ns_campaign=1490&ito=1490