I am 44yrs. old, my family has heart problem histories once into their 60's. I have been experiencing a burning sensation across my chest. I have smoked for over 25yrs (no more than a pack a day). Should I go in to have chest x-ray's of my lungs and to make sure (if their is such a test) I have no blockage in my heart? Please respond with typical symtoms of heart problems and or lung cancer possibilities. Thank you.

Optional Information:
Male , Age: 44

Already Tried:
none