JD,
It is good to see you at your 2 1/2 year mark! I hope the job thing turns around soon. Have you thought of pursuing Social Security Disability? Just a thought.
Here is a link on L'Hermite's Sign or syndrome::
http://www.themcfox.com/multiple-sclerosis/ms-symptoms/lhermittes-sign.htm There are many more available. I hear you on the 5% but I think it is much higher. Here is a link that claims it is a side-effect of Cisplatin as well:
http://www.medsafe.govt.nz/Profs/Datasheet/p/PlatinolAqinj.htm I hope these help you understand more about it. Sometimes I think it feels good but have learned to not look down while walking down stairs as it cause a bit of disorientation.
Ed