Pain under the left armpit may result from muscle damage or swollen lymph nodes due to an infection. However, it can also indicate a more serious problem, such as cancer or angina. The armpit is a ...

Anxiety can sometimes cause physical symptoms like chest pain and pressure. But because these symptoms can also indicate heart conditions, it’s important to get an accurate diagnosis.

The endorphin release feels surprisingly similar. It feels like the part of my brain that copes with pain seems to send out little sparks releasing the instinct to clench up. My animal body lets ...