you feel how you feel, and the MRI can go stuff it. you can take action based on what you do know... and luckily, MRIs are not the only test options you have available!
here's the weird thing about MRI. the findings don't have a lot to do with how you feel. they have found lesions in people after they died, who never knew they were even there while they were alive. also, without digging up a study at the drop of a hat, i am pretty sure that the number and distribution of lesions don't have a whole lot of correlation with EDSS. of course, if you have a c-spine lesion and lhermitte's sign, that's pretty easy to correlate. personally, i take MRI findings with a large grain of salt.
the good thing is, you can start working on symptoms one by one. while the docs run their other tests.
for now, you have an action item re iron deficiency, and you can see what else you find out when the other results come in the mail. 'normal' is an interesting concept - it's just the bell curve. it's still worth knowing what spot on that bell curve is ideal. that's just my opinion.
with iron i like to keep my levels above 100, but not much higher. i can't recall the units off the top of my head. what did your results say?
good for you taking the iron. that along may help explain your weakness, twitching and shaking, but i don't know (just yet) about the vision and tingling aspects.
anyway. it's obviously good to take iron if you're deficient, and especially so since you are taking zinc too. (they compete with each other so consider taking the iron solution at one time and the zinc/cu at another time.
yes, you can start taking the magnesium. which form do you have again? the form and the timing are things to consider if you are dealing with GERD. do you know what's causing it? anything on this list look like possible causes?http://heartburn.about.com/cs/causes/a/ ... causes.htm
i used to get acid reflux symptoms (horrific cough) taking magnesium glycinate on an empty stomach at bedtime, where it would sit there in my stomach and relax the heck out of my LES (my hypothesis). now i take it daily, but before meals, and a good while before bed. cough gone. whew
basically, you just want to get magnesium pushed down through your stomach quick and into the intestine, so that it won't relax your LES and cause GERD issues.
hope that helps!