Neck pain and headaches. Eyes affected?

I had neck pain/stiffness(cervical), and had other symptoms as well. I had headaches specifically at the base of the skull. And even eyes were paining and affected and even I had photophobia. X ray was showing normal curvature but a few lower cervical osteophytes. Otherwise normal x ray. I lived with the pain for long until i took homeopathy and I got okay. Neck pain went away, headaches went away, vision came back to normal. I also had gut issues, weight loss, and also had got off antidepressants. Does this neck pain affect blood supply to the brain even a bit? I need right information. Does it reduce blood supply to the brain (hypoperfusion) or cause any damage? The neck stiffness that caused intense pain. Please guide correctly. Why were my eyes affected?