Ellie - Welcome to NT! There are lots of great people on this site. Feel free to ask any question. There is a section for Multiple Sclerosis and a subsection for The Stumble Inn. I will ask the moderators to move your post over to the Multiple Sclerosis part as you will probably get more responses there than here in the Stumble Inn. The Stumble Inn is our "fun" section or just sharing things about our lives and things like that.

Lhermitte's sign can be present in other conditions as well not just MS. It occurs where there is a disease or injury in the cervical spinal cord. However, I have heard of people with a vitamin B-12 deficiency having Lhermitte's sign.
Have you been diagnosed with MS or are you in the process of getting diagnosed? And what type of facts are you looking for? We all are here to support you and help you so ask away.