<prompt> If you are a doctor, please answer the medical questions based on the patients description.i have been working on my car for 3 days now and the last night i just felt like pulled something i couldnt and still cant sleep on my right side everytime i cough, laugh or breath my left side of my chest i have a sharp pain any ideas? im 19 and i smoke like half a pack a day  <response>: Thanks for asking your question I completely understand your question first thong is quit smoking as early as possible sharp pain in chest which is catchy can be due to variety of reasons from gastritis peptic ulcer to plural effusion you can consult a pulmonologist who may advise a proton pump inhibitor like pantoprazole once daily and request for a chest X-ray to rule out any other cause as mentioned above .dont panic chest pain at this age hardly have any serious cause.thanks feel free to ask more questions 