Glenn, thanks for the further information and the link; and thanks for the suggestion about getting new MRIs. I did have a brain MRI a year ago and it showed only nonspecific small spots, as past ones did.

It is hard to tell whether new spinal MRIs would be helpful or not, but I have to say that, based on my past experiences with MRIs and seeing doctors, I am not hopeful that the cause of my problems will be found. I just have to adapt.

Thanks again!

Nancy