I would agree with the B12 thing. It is often missed in ordinary routine testing, so is worth getting done anyway. There seems to be a potential for low levels if you are on ldopa long term. The more I find out about it the more relevant it seems, so supplementation may be useful for you. What is exceptionally interesting is that there is no 'normal' level, there is instead a range with a big variation, open to interpretation by individual doctors, and different guidelines in different countries. You can test within the low normal, and (on people whose spinal and brain levels have been tested) the levels can be very low in CSF and brain fluid. They are only just finding out about B12........

This is a good site to find out more: http://b12d.org/

This is an old but good video, don't worry about the controversy, this guy is now regarded as a world expert.

http://www.youtube.com/watch?v=lXx7u...eature=related


I think you are unlikely to find a neurologist who goes back a real long way with PD, prior to ldopa many people with PD were treated in psychiatric units rather than neurology, in the US and in Europe.