I've never taken a selenium supplement, and since I've stopped 'iodining' I've stopped eating Brazil Nuts...so I doubt that's it, though.
Also, although I've had the same mercury exposure as everybody, I've never had an Amalgam filling or any reason to feel I have mercury issues. All my symptoms begin appearing after I started taking iodine...and I've traced and followed back most all the pathways to clearly see the root causes and how it all came about.
'Tis really great of you to take the time to care - thank you.