hi i have had pan in the back of my neck for about 4days now thought it would just be cramp at first but its gettin worse i can feel tingling pains in the upper part of my spine,shoulder's and arms the back of my neck is very hot but not red or swollen also can feel tingling pain in the top part of my back on both side's i have suffered with lower back pain since i was 13 and also suffered tight ham strings in my legs and feet again since i was 13 i have taken two tramadol every 6hours but they are not takin the slightest bit of pain away the top part on both of my arm's can sort of rattle inside (feels like a trapped nerve feeling) i am very worried about this as its so close to my head please help thank you