What does it mean when the left side of your chest hurts? Lung or heart?

Could be either. Generally if left sideof chest hurts , we rule out any heart problem you may have. You may also have a lung problem/musculoskeletal/acid reflux/hiatal hernia etc. Appropriate tests will identify the cause.
Could be both... Seeing your physician can help to determine which is the most likely source. You can then address the problem of why you are having chest pain.

Related Questions

The left side of my chest hurts sometimes I feel like I could pass out my heart feels like it skips and goes fast I lose breath and I feel like puking?

Needs evaluation. This is unusual for a healthy young adult. Such symptoms in general may require cardiac and or respiratory evaluation, or even maybe gi. While this may be of non-cardiac etiology guessing about it risks the safety of health - formal medical eval asap would generally be suggested. Read more...

Left side of face numb and chest hurts on the left side of my heart?

Go to ER NOW. You might be having a stroke or a heart attack. This may turn out to be nothing serious but it could be life-threatening. We can't diagnose you further here. Please go to the er or call 911 now! Read more...

When I breath in or sneeze my left side of my chest hurts like where my heart is located?

Not your heart. You have PLEURITIC pain - this is not from your heart. It's from the muscles, ribs and nerves of your chest wall and, sometimes, from the lining of your lung (pleura). If it is worse also when you lie flat and relieved by sitting forward, it might also be due to the outside sac lining of your heart (the pericardium). Read more...

My arm is aching and the left side of my chest hurts what is this==heart or stomach?

Arm chest pain. Can be both! if pressure on chest trigger same pain then it is the chest wall and not the organs inside (bird cage is rusty but bird is well). All organs in pain can trigger irradiating pain reaching far from the organ. At times only the far distant area is painful while the sick organ does not show any symptom till late ! Read more...

My left side of my chest hurts and it usually does during and after my workouts. I have gotten my heart checked iut before but nothing is wrong.?

?chest wall pain. If your heart checks out fine , that is great. Since it is related temporally to your workouts, I advise checking your workout to see what you are doing to cause you to have chest wall pain. Read more...

Left side chest pain over the breast on and off since last year all heart test and X-rays normal hurts when I move or lay on my side?

Chest wall. Glad the tests are normal so far. The most likely cause is chest wall(muscles) or breast, or scar tissue from your prior heart surgery. If your heart doctor says it is safe, a therapeutic trial of an antiinflammatory like naproxen might be useful. Have you had a mammogram recently? Read more...