I recently had a cervical spine surgery ACDF. Few months ago I had it but after the surgery I am suffering from post operative problems. Stiffness in hands muscles, cramps in back, body pains, headache alott n neck pain too. As well unable to climb or get down the stairs legs start vibrating. What is the main issue. N from last two or four days I am suffering from severe headache in nly one side left side till back of my head unbearable n I am also getting vomiting sensation neck pain alott.