I have to warn you, for the first little while, you will be extremely hyper sensitive to the signals your body is sending you, any good will feel really good and vice versa, even though mine was definitely to the good, I'm glad things leveled out after a few months. I'm just trying to push you to the murky middle, it's a good place to hang out until you know for sure either way. Not overly exuberant over perceived gains, and not panicky over perceived losses or lack of gains. Myself, I set a mental 3 month marker, and resolved to not get overly excited until then, not saying there wasn't internal celebrations, or that slight panic at the little twinges in my neck and whatnot, that's always a good impetus to take a deep breath, remind yourself that you have just been through an emotional roller coaster, and allow yourself to just be a patient for awhile... I think you'll read a lot of stories of people pushing it too hard too soon, then had to chill out a bit and let nature do it's thing. (And yes, that is presuming a positive result, which is all I can personally attest to).
I will say that one of the best perks so far, in the "not necessarily a medically identifiable +/- department", is the regaining of early memories almost down to sights and sounds. It's like they were stuffed in the bottom of a closet and forever forgotten, which is okay, because when you don't know what you can't remember, you don't miss it! I get a couple new ones almost every day. So whatever is healing up in the brain, whatever areas are getting rediscovered oxygen, are far beyond just the short term.
Good luck on your trip. Godspeed and keep us posted!
RRMS Dx'd 2007, first episode 2004. Bilateral stent placement, 3 on left, 1 stent on right, at Stanford August 2009. Watch my operation video: http://www.youtube.com/watch?v=cwc6QlLVtko
, Virtually symptom free since, no relap