Hi. I understand your concern s. You will need to undergo a detailed examination and investigation. Consult a pulmonologist for the same at the earliest

You should do a X-ray chest and show it to a chest physician as soon as possible .

Sir, since you have medical background, I can explain you this lungs are insensitive to pain. It is the pleural covering which pains but it is also sharp strong pain, which seems unlikely from your explanation. Approach a specialist doctor in your area. With further investigations like ECG and Xray we can determine whether pain is of any consequence or not

Hi Need more history. You may need ecg and chest x-ray