the front of my heart does not get enough blood?

You didn't mention your age? If blood supply is less, it means you should be worried. Get your self checked by a cardiologist.
You may need early intervention.

Your arteries supplying blood to the heart have become narrowed that's why there is less supply of blood. It could be due to high blood pressure, obesity, diabetes etc.

A cardiologist will advise you properly.

The middle has FOUR chambers... best ONE of them will kill you if it is not getting adequate blood and YOU DIDN'T SAY WHICH so I are not able to reply your questions... additionally.. self diagnosing with the know-how you get on ANSWERS... can also be detrimental in your well being.

You may have a blockage.You didn't mention your age.

because not enough oxygen