Thank you all for your replies. Yes I was wondering about the ct scan myself. From everything I've read they only use mri's of the brain. I will mention this when I go back. I also just came from my optometrist ( he use to be a family doctor)on a follow up from having weak eye muscles, and he told me that sometimes you can have an mri and nothing will show up and do it again in 6 months and there are lesions. He said if I'm having lhermitte's sign there is definitely something causing it. Unlike my neuro who said it just happens to some people for no reason. Think I may just get a new neurologist because I can tell he's soon going to give up on me.