I'm a 28yo male, playing tennis 3x a week, 183cm, 72kg, BMI 21.5, not overweight at all, usually eat very healthy and I have never ever smoked. On the other hand, I do have a stressful sedentary job, stressful sedentary hobbies and a stressful attitude to life, and both of my parents have some heart trouble (tachicardia, atrial fibrillation), my grandfather went with aortal rupture, and I don't drink. And i've been somewhat of a weakling all my life, quite the opposite of an athletic guy.
I was feeling some palpitation and did an ECG. It showed flat T-waves. Like completely flat. Since then i've been feeling pain and pressure in the upper chest and it increases when I stretch out my left arm (move it to the back when horizontal). Overall i've started to feel worse (breathless after climbing stairs and so forth). Blood pressure was 125/80 I think.
The doctor sent me to an Echo test which will happen in a few days and probably will send me later to an ECG stress test, but won't say what could be wrong with me.
So right now I'm pretty stressed which doesn't help any and am imagining all sorts of medical conditions I could have from reading Wikipedia and Googling.
If somebody could name something benign that this could be it would be much appreciated and maybe will have some positive effect on me.
If not benign then at least something that will likely go away if I exercise, continue to eat well, take some medicine and relax more.
P.S. I think I was probably alright last summer; ran 10km slowly on one occasion and played tennis 3hrs straight at times; played tennis 5 or 6 times a week on a couple of occasions feeling alright.
P.P.S. 4 years ago I was in germany and there was a chinese prophet (?) lady who supposedly tells everybody the truth about their medical condition. She knew some of my collegues and told me (for no payment, so no reason to suspect foul play) that when I turn 30 I should have my heart condition checked every 2 years.