IMO, I would request another doctor ASAP. Seems that doctor has a hidden agenda, and I feel for you brother, I really do!
Get an MRI done as soon as you can. Request one thru your Primary Care doctor, x-rays alone will not show what is really going on with your back and your secondary issues related to your back.
Good Luck and DON'T GIVE UP, that is exactly what they want you to do!
B6