I am glad you are getting the help that you need/want! I totally understand as far as the depression/headaches thing too!!
My very first appointment, the Neuro wanted to prescribe some kind of beta-blocker (which I told her no thank you) and then wanted to describe Zoloft for the "depression" that I don't have!!!! YARG! I actually had to bring in my dad to help "persuade" her to order an MRI, (luckily insurance saw that it was necessary) So I totally know how you feel!!!!! SO frustrating!
Happy for you now though, keep us posted on your results...and remember if it shows normal, at least you will have peace of mind...! (no pun intended, ha ha)