Complaint of arm pain ends in death. TWO WEEKS OF SEVERE PAIN IN HER LEFT ARM, along with severe chest pain and a sensation of “elephants” on her. If your arm hurts, you may first think it's injured. But pain in one part of the body can sometimes originate elsewhere. A pain in your left arm. While aches and pains are a regular part of aging, sudden or unexplained left arm pain can signal a serious condition, such as a heart attack or. Pain in the left arm can be due to many causes, ranging from a pulled muscle to a massive heart attack. While it is not always possible to determine whether left. In many cases, arm pain actually originates from a problem in your neck or upper spine. Arm pain, particularly pain that radiates into your left arm, can even be a. Pain in your left arm could be related to a heart condition. Angina, which is caused by decreased blood flow to the heart, can cause pain in the. If you're experiencing left arm pain, anxiety could be the cause. Anxiety can cause muscles in the arm to become tense, and that tension could. Men having a heart attack often feel pain in the left arm. In women, the pain is more likely to be felt in either arm. The pain might also come and.