I am kind of on the fence on this issue. I am on my third-no fourth- neuro. The first said, "Migraines." phooey.
The second said, "It's your fibro." More phooey.
The third said, "Maybe MS...let's watch it." After a year and severe leg spasms, "Probable."
after diddling around with that neuro's NP for months, I found the present neuro (thanks to Wiz)...so far he's been on top of things, taking me off of meds that weren't doing anything good for me, and putting me on meds that have at least helped reduce some of the sxs.
Now he is being proactive, IMHO, by suggesting a clinical trial. Is he just using me as a guinea pig? I have to have faith, I guess. I have been told by nurses in the field of MS that he is world-renown. And he vows to take me out of the trial as soon as I wish to be out, or if he sees it's not helping me.

But, he is a doctor, a group of humans I have been kind of prejudiced against for many years and many reasons. It's hard for me to trust...but so far he doesn't seem to have steered me wrong.

Neurology is at best a guessing game, since the brain (and the eye) is the final frontier of the body, and is amazingly complex. I just pray that they find the cause in my lifetime, just to satisfy my curiosity.

I feel blessed in being diagnosed at a time when there is so much research going on with this stupid disease.
My PCP lets my neuro handle things neurological, and she takes care of the rest. No interference, or differing opinions, which spares me the confusion some of you seem to have regarding what is best for you.