I am a 67 yo man. I developed pn about 2 yrs ago. I also get extremely tired in my pelvic region and movesup my back. I had bilateral laminectomys on L1-4. but no relief. my CK creatine kinese is 715, it dropped some and then went back up. The research I have done says High CK comes from muscle damage, heart damage or from the brain. I have have all the heart work ups. I have been to two neurologists including one at Oregon Health Sciences med center. my CK e]was normal prior to all this. Anyone else with pn and High ck?