For the last 15 years (since my first remembered EKG) I have had an inverted or flattened T wave. During a stress
test this past week, my EKG was fine until I exhibited an ST
depression of 1mm at 130bpm. At 142 to 164 through stages 3 through 5 of the protocol, it went to 1.5mm. I had no chest pains and had no problem on the treadmill.