Hi last week i started with a shooting pain behind my ear. After two days that went away and I had pain in my neck and shoulders. after another two days thatwent away and the pain behind my ear started again but spread down left side of head. Now I have pain down left side of neck, across left shoulder and down toward should blade. what do you think is happening. I have taken diclax, panadol and codegin but nothing seems to make it go away.