Comprehensive guide to feeling shaky, tired and heart beating fast. Learn causes from blood sugar crashes to anxiety, emergency red flags, immediate relief techniques, and long-term solutions.

Discover lifestyle habits, medical conditions, and medications that cause high pulse rates. Learn warning signs, measurement techniques, and science-backed solutions for tachycardia.

Discover how acid reflux triggers heart palpitations through vagus nerve irritation, esophageal spasms, and anxiety loops. Learn to identify dangerous symptoms and proven relief strategies.