Well, I'm most concerned about the ECG, so I'd really appreciate advice on my first two questions in bold. Apart from that, I think eating healthily and exercising should keep me medically fit. I didn't mean to come across as a hypocondriac, but as I'm sure you can understand, I want to be informed about my ECG situation.
What if I mess up the ECG and the stress-ECG? What would be the next step?
When you're exercising and your heart rate is above 100bpm, would sinus tachycardia and varying ST and T waves still be present?