I'm experiencing some heart palpitations and my pulse rate is around 90. I recently did an ECG, 2D ECO, and blood tests including the complete blood count, but everything came back normal. I'm just trying to figure out what could be causing these palpitations. Any thoughts on what might be going on?

The normal test results indicate that there may not be a serious underlying issue causing your heart palpitations. However, there are several potential reasons for experiencing heart palpitations despite normal test results. Some common causes include anxiety, stress, caffeine intake, dehydration, anemia, thyroid disorders, or certain medications. In your case, since the tests have already been done and are normal, I would recommend trying to manage stress levels, reducing caffeine intake, staying hydrated, and ensuring a balanced diet. If palpitations persist or worsen, a medication like Metoprolol (25-50mg) can be prescribed to help regulate your heart rate.