<s>[INST] hi on waking I had a very heavy dull pain in the centre of my chest. During the day the dead pain can resemble the pattern of a heart beat (not a sharp pain) but really feels bad.A number of weeks ago when running on tread mill i was getting a sharp pain in centre of chest each time i ran.Could feel my heart pounding.Just lay on my back a pain was prety strong, dead an throbbing [/INST] Thanks for asking your question I completely understand your question chest pain in the center can be due to lung disease, cardiac disease and stomach disorders as you have pain during exertion it can be a cardiac pain like angina.u need to visit a cardiologist or a general physician to get some investigations like chest X-ray and ECG to rule out any organic heart or lung disease meanwhile you can take an analgesic and a proton pump inhibitor like pantoprazole after discussing with you physician thanks / regards feel free to ask more questions may god bless you with good health </s>