Thanks for your question on Health Care Magic.
I can understand your concern.
First degree AV block means there is blockage in conducting impulse from atria and ventricle.
This condition is usually benign, not dangerous and not showing any symptoms.
But with
hypertension, this can cause
heart failure.
Your blood pressure is not normal. It is very high.
So with AV (atrioventricular) block, this can precipitate heart failure.
So your chest congestion can be due to early heart failure because of hypertension.
So we should first control your hypertension.
For this you need to start anti hypertensive drug, strict salt restriction in diet and exercise.
Don't worry, with control of blood pressure, your
chest discomfort will improve.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.