Burning Upper back/neck pain moves to head and causes headaches no pill will cure. Worse when sitting. Both sides. I can't stand the pain much longer.

Need an exam. You have several causes that require immediate attention. A visit to a hospital or a clinic immediately is what I would do. Please. Rule out the things that are easily treated and can cause death or stroke and move the more common chronic issues. But at least get one thorough evaluation immediately.
At this point you . should see a spine specialist for a detailed evaluation and appropriate testing who can then guide needed treatment as you are not improving on your own. Testing may range from x-rays, CT &/or MRI with treatment possibly involving PT, injections thru pain management & potentially different classes of medication you may not have already utilized . If still symptomatic, surgery may be an option .