Brian,
Thanks for the encouraging words- I remember similar hopeful words from you from one of my earlier posts. I haven't had a OGT for several months, just had a FG = 98 (2/2), normal but that isn't the whole story I know. As for the chemical exposure, I've had the blood work for heavy metals, arsenic, etc and all were normal - good news. My understanding is that neuropathy derived from a chemical exposure usually develops rather suddenly and generally after an acute exposure. Once the agent is removed the neuropathy then begins to resolve itself. However, my PCP is looking into the medical literature to see what she can find for chronic exposure, as am I. I don't know of any specific blood tests for solvents like hexane, methyl butyl ketone or toluene.
I'll post again when I know more - I go back to UPenn in ~3 weeks to see the neurologist there so I've got a lot of questions to raise.
Alkymst