It looks like you have gastritis
problem. Try some antacids and see. Check weather your symptoms will be better with that medication.
I would like to know your age.
If your symptoms persist, these symptoms can not be neglected. You may have to visit a cardiologist for the same.
Classical heart related pain will be like this. It starts in the chest region, left side or middle, may radiate to left shoulder and left arm. It is usually short lived, will get aggravated with exertion and comes down with rest. May be associated with sweating.
All the best