Hi, I'm new to all of this. My primary area of pain and tingling sensation is at the base of my neck or top of my back. I'm used to the tight muscles up there, but the tingling sensation is new. Is it that the spirochetes are attacking there? I get achy all over as well, in it feels like all of my nerve endings, esp. feet and hands. That comes and goes and so do the muscle twinges and joint pain. But I am thinking that is possibly herx?