.  We have a problem
> absorbing B vitamins and as with most women become insufficent in
maintaining
> our levels of calcium .
>

That would explain why women with thyroid disease are so prone to PMS since
that has been linked to vitamin B deficiencies.
I would also be concerned about the source of the compresion of that L5
disk. It is rare for the thyroid to become large enough that it compresses
the disk. Could it be inflamation?
Mary