Hi Dubious,

Thank you very much for your response! All of this is Greek to me, so I got my work cut out in educating myself. I had a CT scan with contrast dye a few of weeks ago; I am extremely hypersensitive to chemicals, certain foods, etc.; so maybe it is playing a role in this somehow. I hope it will end soon, because it is wreaking havoc on me! The doctors I have told about it look at me as if I am an alien. Thanks again!