I have seen MANY doctors and still have no certain diagnosis. I have had nerve conduct study done on my tongue and my tongue is normal. I have issues with my jaw, sometimes my jaw quivers - I think that would be adversely impacting my speech (sometimes my jaw locks). Due to progressive nature of this issue, my speech has steadily regressed and is almost fully unintelligible now. I sure wish I could get proper help - very difficult not being able to verbally communicate. I was told to get Lumbar Puncture, but I have compressed Spine due to trauma and cannot get straight answer from Neurologist whether Lumbar Puncture is Contraindicated due to compressed spine?