What is this piercing pain ?

Hello I am 24 year old female I weight normal I am a smoker for couple years now I have a little bit of asmtha I've been to my cardiologist about 3 weeks ago and I took all the tests cholestorol ultra sound of the heart and as well as EKG and it all came out normal I have no history of heart disease and no cardiac problems showed on my tests but just right now Im experiencing like piercing pain in the left chest like im being stabbed with needles and is not going away is really painful and unconfortable i chewed down on an aspirin hoping to make it better any suggestions what that might be ??