Severe, sudden pain in any part of the body would result to a fainting
spell if the body can not tolerate or if you have low threshold for pain. We call it a vago-vagal stimulation. It is the body's response to an overwhelming sensation. It is manifested by pallor in your face, lowering of heart rate
and cardiac output and eventually fainting. Try to call somebody or inform your companion whenever you feel severe pain
again. And seek consult for the cause of this pain. Feel free to follow up.