I think if you had any nerve involvement from the loss of lordosis, it would show up on the imaging/x rays.

The loss of curve is quite normal with long term desk or repetitive work.
You could try expert PT or expert chiropractic care to see if that improves any symptoms..

If you ever had a head, neck or shoulder bump or hit, the c1c2 could be misaligned.
and it could cause some of the visual and balance issues.
General x rays won't confirm this, it's special training that chiropractors may have.
www.upcspine.com
signs/symptoms-
http://www.upcspine.com/self.htm