Hi - lots of information on this site! I have had right leg pain - apparently exactly like one would with sciatica pain from back injury - for eight months. I was put through many tests - and my lumbar is fine. Two months ago I noticed my vision changing, I ignored it as I was not used to taking any medications and now was on pain pills, muscle relaxers, motrin, and Lyrica. Big mistake - I woke up and was blind for 5 seconds. Went to doc, and you guessed it - bilateral optic neuritis. My brain MRI was negative, actually EVERYTHING has been negative - including the nerve conductor test of my leg! I am to go to Neuro this week. Apparently they will do more MRI's of my C & T-Spine and a spinal tap. Anybody had these symptoms??