It seems that a large number of PD's are searching their minds to determine whether exposure to one or more chemicals out of millions out there might have caused the disease. Of course, it is possible but not likely. Then there are those who possibly attribute psychological causes to the disease. Again, this is possible but not quite likely. The is also another equally valid possible cause for the disease, and that is that God has been offended and she is seeking retribution against those sinners. I think that reasonning is as valid as any other I have heard on the net. Good Luck. MM