Submitted by Dr T on January 30, 2013 – 2:24pm
Palpitations and unexplained tachycardias are never normal. T-wave inversions can range from a serious condition such as a heart attack due to coronary artery disease (CAD). Assuming you are otherwise healthy, it is VERY unlikely you have had an MI or other major cardiac event and not know about it.
Besides an EKG, you also need some blood tests that include checking you for anemia and your thyroid function. You can check also your cardiac risks, unlikely to be a a major factor at your age (<30).
Hope this helps,