Notice that less than these situation there might be pain both with no stimulus or with a very Light, non-tissue-harmful stimulus. Nothing is known regarding how these stimuli activate nociceptors. The nociceptive nerve endings are so little and scattered that they are difficult to find, not to mention review. https://what-is-chronic-pain17665.mybloglicious.com/51526174/what-are-pain-receptors-things-to-know-before-you-buy