Hi I am having pain in the center of the left side of my chest,like a shooting pain,its been on and off for while it comes and goes,am 29year old male,also I have woke up this morning and am sniffing and there is blood in my spit,could you give me some answers.
Hello if the pain you describe is when you breathe deep, and the episode of blood.  It looks like pleuritic pain.  I.e.  The pain arises from inflamed covers of the lungs.  I suggest you to get a chest X-ray done if occasional cough is present second probability is that you suffer from gastritis with some reflux in the food pipe which may have caused some blood in the spit.  Do visit your local physician and evaluate for same.  Hoping I could help.