answer:C5-C6 for me. It was so bad when it started that I could barely raise my head. At the time, I had a two-year-old on the hoof, and chasing him when he took off down the street was pure agony. He’s 26 now. Xrays, electrode tests, MRIs. Pills, PT, exercises, Lidocaine patches, ultrasound, cortisone injections, you name it. Everything short of surgery. Over those years, at least seven doctors in various capacities: primary care (3), neurologist (2), spine guy (1), orthopedist (1). Maybe others I’ve forgotten. I haven’t had numbness, though. Just pain, pain, pain. When surgery was the only option left, I gave up and said I’d manage this myself. The two things that have made the greatest difference are (a) heat (heating pad) and (b) judicious deployment of pillows and cushions large and small, mainly at night. I don’t know what I’d do if I were experiencing numbness or other actual impairment. Maybe I’d capitulate and try the surgery. As long as it’s just pain, I do what works, ignore what doesn’t, and live with it. And I’m better off now (in that respect) than I was when the trouble began.