### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
23 years male, 177cm, 66kg. for the last 3 months i have been having chest discomfort, dizzy, palpitations and fast heart rates (90-110 at rest), high blood pressure (24h monitor revealed 133/75mmHg, pulse pressure 58mm Hg, heart rate 86bpm - during sleep 126/63mmHg and heart rate 64bpm, it fluctuates between 50-84bpm), sometimes i have bluish/purpule lips and nails, sometimes i feel like my throat is closing or narrow. ekg was normal, echocardiogram did not reveal anything, and bike-stress test was ok (time 0= 145/85mmHg and 132bpm, reached 171bpm @ 175w in 8:17minutes - after 1st minute it went down to 150bpm, the second minute it went back up to 157, the 3rd minute 143, 4th 134, 5th 133bpm; my bp went up to 175/95mmHg, 3rd minute of rest it went back down to initial 150/85mmHg). i did not fell any pain or problems breathing, just a little lightheaded. i still get palpitations (at rest), my lips turn bluish at the corners, i feel slightlly faint or dizzy. i can run for 15 minutes(5 walk, 5 run, 5 really really fast run) and not have any discomfort (maybe a little dizzy or lightheaded). what can it be ? if i experience chest pain or discomfort, wouldn t exercising while i feel it make it worse ? i tried it twice and the discomfort went away. (still get that blue color on the side of my lips and purpule-ish nails). my dad had a heart attack when he was 45.

### output:

Yes certainly heart problems are hereditary so you at a risk but presently all your work up is negative. Do you smoke?, any acidity problems like burping, sour water in your throat. Your problems can be related to gastritis so try some antacid. Avoid spicy, oily food. Avoid alcohol if you are having it. Presently no need to worry however be vigilant. Preventive measures like healthy lifestyle and regular exercises should be continued.