I am 35 year old female. Have Chiari I malformation. Had decompression 2/07. Did fine and returned to 99 percent. Jogging 3 miles, working, painfree. Developed leak and had 20 minute repair of small leak. Woke up with sever head knife like pain and like something is in my neck. On massive narcotics and pretty much in bed 75 percent of day. Feels very swollen inside and I respond to steroids. causing severe numbness in legs, left arm, and mouth/face. Causing weakness and nausea. Very specific to right side of neck. Slightly fim and slightly swollen. Very sore deep inside and feels thick inside. Had thethered cord surgery and no help. Pain transfers down back in addition to everything else. Could I be having reaction to duragen graft? Does inflammation show up on MRI?