Vertebral column

The vertebral column, also known as the backbone or spine, is part of the axial skeleton. The vertebral column is the defining characteristic of a vertebrate in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bone: vertebrae separated by intervertebral discs. The vertebral column houses the spinal canal, a cavity that encloses and protects the spinal cord.

ME/CFS
Craniocervical instability

Cervical stenosis

Tarlov cysts

Fibromyalgia
Chiari malformation

Ehlers-Danlos Syndrome
Several pathologies of the spine have been associated with Ehlers-Danlos Syndrome. (Link to and reference Henderson et al)

Related

 * Brain