I started feeling breast pain on left side of my body. If I lift my left hand upwards or if I do any work involving my left hand, I will get the pain. Initially I thought if I work more I am getting pain, but later I realized it's not true. I feel the pain even if I don't do more work. Although I feel less pain most of the time, some times I feel the pain is quiet more. I don't feel tired but I feel the pain. Should I go for scanning of my heart? Kindly advise me and please provide me precautions to avoid the pain. Thank you in advance.