My left breast under it a sharp long pain comes and goes I'm 56 they say I have cops I smoke cigs

Answer 1

Is there any bump? Blister or rash? Many diseases can have symptom like this. A few life-threatening chest pain: ischemic heart disease, pulmonary embolism, pneumothorax, aortic dissection. other disease: pneumonia, Ribitis， shingles, Intercostal neuritis，pleurisy（TB ,maybe no fever）esophagitis, hiatal hernia, esophageal cancer, lung cancer, breast cancer.

You should  go to hospital to find out.

Answer 2

Cops? Do you mean COPD? If you're a long time smoker you have a higher chance of COPD.

However, COPD doesn't cause chest pain. Did you get a CT scan on the lung when they diagnosed COPD? When was your last chest scan?

The pain can come from the lung, bone, heart, stomach, pleura, so you do need tests to find out.