Signs and Symptoms of a Heart Attack Chest discomfort. Most heart attacks involve discomfort in the center of the chest that lasts for more than a few minutes, or goes away and comes back. The discomfort can feel like uncomfortable pressure, squeezing, fullness, or pain. Discomfort in other areas of the upper body. This can include pain or discomfort in one or both arms, the back, neck, jaw, or stomach. Shortness of breath. This often comes along with chest discomfort. But it also can occur before chest discomfort. Other symptoms. These may include breaking out in a cold sweat or feeling nausea or light–headedness. I agree with the answer above me that it could be gas, based on the fact that it goes away and you don t seem to have other symptoms. I have had that happen to me in the past and I swore I was having a heart attack and was on my way to the hospital when I belched and the pain went away. It could also be anxiety caused by the stress you are under. I have had that happen as well, usually during a panic attack. If you develop more of the symptoms above, get to the hospital ASAP! Most hospitals HAVE to take care of you and will work out payment arrangements. There are also programs available that pay for all or a large part of the bill. *I am not a licensed medical professional and only offer my opinions based on personal experience and research.*