I am a 22 year old who has been having really random chest pains for a while. They are located in the left side mainly. Sometimes located more towards my armpt area and above my breast. They are quick and then go away. sometimes I'll have a few then it just goes away. I went to a dotor she did an EKG and ran blood tests but everything came back normal. I don't smoke I don't have high blood pressure. I don't know what to do and it makes me nervous.