What could be causing my palpitations if it's not heart-related? All my tests, like the ECG, 2D echo, CBC, thyroid, and vitamin D3, came back normal. I still get palpitations randomly and also feel really tired with body aches. What might be going on?

Palpitations can be caused by various factors other than heart problems, even if your ECG, 2D echo, CBC, thyroid, and vitamin D3 levels are normal. Some possible causes of palpitations in your case could be: - Anxiety or stress - Caffeine or stimulant intake - Anemia - Dehydration - Electrolyte imbalances - Medications (such as decongestants or asthma inhalers) - Hormonal changes (such as during menstruation or menopause) To help alleviate your symptoms, you can try reducing caffeine intake, staying hydrated, managing stress through relaxation techniques, and ensuring a balanced diet. If symptoms persist, you may consider discussing with your doctor about medications like beta-blockers to help control palpitations.