COVID-19 vaccine side effects and long COVID symptoms can overlap, leaving many patients with fatigue, brain fog, palpitations, nerve pain, poor sleep, digestive imbalance, skin flares, menstrual changes, or immune weakness. This guide explains warning signs, medical testing, and how Ayurveda may support recovery through Agni correction, Ama reduction, Vata calming, Ojas restoration, Rasayana therapy, and personalized rehabilitation.