Pain is a way your body is signaling you that there is an organ in risk, so it's best to be aware of the pain you have and try not to avoid thinking about it. 
Sometimes the pain is certain places of your body can actually be caused by things that are not related.
WebMD , “Referred pain occurs when a problem in one place in the body causes pain in another place.” 
By learning these referred pains you can improve your life a lot so let's begin.