I have inflammation in spine neck an low back but tests say no inflammation why?

Depends : Does an X-ray show 'inflammation' and an inflammatory marker lab doesn't? If so, that is normal. Inflammatory lab markers are usually elevated with infection or a severe inflammatory condition like rheumatoid arthritis, lupus or other connective tissue diseases. Routine degeneration/inflammation of the spine such as with arthritis shouldn't show up in a lab.