Based on the details shared, this episode appears more like a brief presyncope or anxiety-related event rather than a cardiac problem, especially given the very short duration, spontaneous recovery, absence of collapse, normal ECG, and young age. Such episodes can commonly be triggered by stress, posture, dehydration, or heightened anxiety. The development of cardiophobia afterward is understandable but reassuringly, there are no strong red-flag features suggesting heart disease here. With reassurance, lifestyle measures, and addressing anxiety, prognosis is generally very good.
Next Steps
Focus on reassurance, good hydration, regular meals, sleep, and light exercise. Avoid repeatedly checking your heart unless advised. If anxiety or cardiophobia persists, speaking to a doctor or mental health professional can help.