Mri says mild degenerative changes, most significant at c6-7 with a small posterior disc osteophyte complex contributing to mild central canal stenosis. would this cause dizziness? how do i treat?

Ask Neurologist or Orthopedic/Spinal Surgeon about your concerns. It is possible that the stenosis could cause headaches, but the fore mentioned Specialists would be able to better address your concerns.

Your expected symptoms would include neck pain and stiffness, with secondary tension headaches. Cervical dizziness is occasionally associated with cervical spondylosis but is typically a light-headed somewhat unsteady sensation, NOT true whirling vertigo. Would suggest physical therapy with possible motorized cervical traction.