Teen's Terrifying 'Heart Attack' at 16 Turns Out to Be Misdiagnosed Rare Disorder
At just 16 years old, Darcie Warner experienced a sudden, intense episode that left her clutching her chest in extreme pain, with her heart rate skyrocketing. She feared she was having a heart attack, describing the moment as terrifying and isolating. "I couldn't move or do anything," says Darcie, now 20 and living in Cardiff. "The pain was the scariest part, not knowing when it was going to stop. It was sudden and I was by myself. I honestly had no idea what was happening, I was in shock." This harrowing experience marked the beginning of a long journey with a condition that was repeatedly misdiagnosed.
The Hidden Reality of Postural Orthostatic Tachycardia Syndrome
Darcie is among the 0.2% of the population suffering from Postural Orthostatic Tachycardia Syndrome (POTS), a chronic nervous system disorder that disrupts blood flow and heart rate. This condition causes the heart to beat abnormally fast, often triggered by moving from lying down to standing up, leading to symptoms like dizziness, lightheadedness, and unsteadiness. Affecting approximately 135,000 people in the UK, POTS is most commonly diagnosed in women aged 15 to 50, though it can occur in men as well. Darcie's story underscores the challenges of recognizing such rare conditions, especially in younger individuals.
From Active Teen to Debilitating Symptoms
Before her symptoms emerged, Darcie led an active lifestyle typical of a teenager, regularly attending the gym and socializing with friends. Her first alarming episode occurred during a workout, when her heart rate sped up dramatically, accompanied by intense palpitations, dizziness, and breathlessness. Initially, she dismissed it as exercise-related, but the symptoms persisted and worsened over time. "I'd be sitting on the sofa or even asleep, and my heart rate would suddenly shoot up," Darcie recalls. "Sometimes it was nearly 200 beats per minute, and I wasn't doing anything." This led to crippling chest pain and feelings of faintness, severely impacting her daily life.
Misdiagnosis and the Struggle for Validation
Doctors initially attributed Darcie's symptoms to anxiety, prescribing medication and suggesting it was stress or hormonal changes. Her mother, Rebekah, 49, admits, "I thought it was anxiety, if I'm honest. All the symptoms that she was telling me were very anxiety-based." However, Darcie felt something more sinister was at play. "You're young, so people tell you it's stress or hormones. You start to feel like you're being dramatic. I thought I was making the whole thing up. I was just like, is this even real? I started to not believe myself at all." This misdiagnosis caused her to avoid exercise, struggle with sleep, and see her social life shrink as she felt safer at home, missing out on teenage adventures.
Turning Point and Diagnosis
After two years of aggressive heart palpitations, Darcie's Apple Watch began flagging dangerously high heart rates at rest, prompting her family to seek private treatment. She was eventually diagnosed with POTS, a moment of validation. "It was great when I got diagnosed, I honestly felt validated," she says. "I stopped feeling I was making it all up, but it's sad because I've missed all that time, time I should have had." While there is no cure for POTS, symptoms can often be managed through lifestyle adjustments and medical interventions.
Managing POTS and Looking to the Future
Mr. Kalyana Javangula, a consultant Cardiac Surgeon at Nuffield Health Leeds Hospital, explains, "Although people with POTS have a normal life expectancy, unfortunately, there is no cure. However, physical activity, diet and nutrition can help to alleviate symptoms. Studies have shown that reclined aerobic exercises like swimming, rowing, and recumbent cycling have the best results. In 80% of cases, the condition improves, but some may have residual symptoms. You can also get medical compression stockings to help push blood from the legs to reduce symptoms." Since her diagnosis, Darcie has tried lifestyle changes, such as electrolyte drinks and adjusted routines, and is preparing to start medication for better symptom control.
Rebuilding Confidence and Raising Awareness
Now studying radiography at Cardiff University, Darcie is excited about her future and slowly rebuilding her social confidence. "I can start doing more things than I used to be able to, I just want to go back to the gym without stopping after 30 seconds," she says. "I want to feel confident in my body again and to go out with friends without worrying." She emphasizes the importance of awareness, especially during National Heart Month in February, a campaign led by the British Heart Foundation. "There's a lot more to POTS than people realize. If this helps even one teenager feel listened to sooner, it's worth it." Darcie's journey highlights the need for greater understanding of heart-related conditions in young people, challenging assumptions that they only affect older adults.
