What causes noncardiac chest pain?

Many things: Many things can cause non-cardiac chest pain. Anxiety and stress, esophageal disorders, stomach disorders, reflux disease, pulmonary diseases like copd, asthma, pleuritis, pneumonia, pulmonary embolism, herpes zoster, costrochondritis, just to name a few.

Noncardiac CP: Noncardiac chest pain may be caused by costochondritis, gerd, esophageal spasm, gallbladder disease, pleurisy, intercostal neuralgia, herpes zoster, etc.

Lots of things: Could be a problem with skin, nerves, muscle, shoulder, lung, or stomach. See your doctor for a more thorough history, physical exam and further evaluation.

Many causes: Most things in the chest can hurt if they are irritated or injured. Knowing that is is noncardiac, ie not the heart is good. But if pain lasts see your doctor and get it evaluated. You may have gastric reflux, pericarditis, pleurisy. Some are minor, some may be issues that need treatment.