I would say unequivocally-- DO NOT WAIT UNTIL FEB for your next MRI. This will at least give you an idea of what you are dealing with. DON'T WAIT!

I take vitamins for anxiety and hypoglycemia, including Choline and Creatine.  During a recent stressful period, I noticed the tip of my nose tingling as if someone were rubbing velvet against it.  I looked up this symptom and found some site that said that when the ratio of Choline and Creatine is too high compared with Glutamate, you can have that.  So, I stopped those two vitamins and started eating more avocados (which are a good source of glutamate) and the tingling went away.  I permanently stopped taking Creatine, but I still occasionally take Choline for my anxiety and memory.  For a while, though, every time I would take Choline, the funny feeling in my nose would come back, so I had to take quite a long break.  I still get tingling or pain in different areas of my body, but not the annoying nose tingling.

I assume that you're not taking Choline or Creatine, but you're body might naturally be a little off in that direction.  I would take fish oil every day and eat lots of avocados (to protect your neurons) AND exercise to get that tension out.  As hokey as it sounds, I feel like my tingling and pain comes from extra tension/energy floating around in my brain and/or body.  You have to get that energy out or it will damage your body.  I feel like serious diseases like Fibromyalgia and Multiple Sclerosis don't have to happen if the body can be redirected when it's in the early stages of imbalance.  I hope you get better soon, if you haven't already.