After 2.5 years on Arimidex my neck started hurting a lot – it's been touchy for several years so this was not brand new, but more intense and worse on the right side. My Oncologist ordered an MRI which showed (in my doctor's words) "a ton of arthritis", 2 herniated discs, and bone spurs on facet joints, worse on right side… which made perfect sense. I'm now working with a spine group; they have me on Meloxicam, a strong anti-inflammatory, and I'm doing PT which is helping to stabilize the neck muscles. Hoping to keep making progress with PT; it's been very helpful for my therapists to have the imaging result to see what's going on in there. Doing Zometa for bone density. Thank you for sharing, it's helpful to know others are coping with this too.