I had Chairi decompression 20 years ago. Have been having pressure and pain in my head and neck constantly for the past 4 mths. Have been to 2 neurosurgeons who sent me to pain management and neurologists who said it was migraines. The one admitted me to make sure I didn't have hydrocephalus or increased ICP. Gave me the migraine protocol and pumped me full of meds for 48 hrs with no relief. I have 8/10 pain with head down movement or arm use or bend over action. I am dizzy nauseated lightheaded. I have poor concentration. Blurry vision when I look down. Weakness on right side. Tingling on both sides of body and lower part of face. Poor gag reflex. I cough on food and drink. Fullness in right ear and pain in. Right ear. Ringing in ears. Saw 3 rd neurosurgeon who said it is cervical instability and sent me for upright mri with flexion and extension and said I may need a cervical fusion. Anyone have this surgery?