This is the third time I'm posting this but I think it's important enough to have its own thread:

The link to the article I posted (http://findarticles.com/p/articles/mi_m0ISW/is_2001_May/ai_73959332/print)

Quote
Selenium is an essential trace element, which is vital to the activation of GSH- containing, liver detoxification enzymes and also to the antioxidant enzyme, Glutathione peroxidase, important in neutralizing free peroxide radicals and oxidized lipids. Tolerance of selenium may be limited by its binding to, redistribution and precipitation of mercury in the tissues, which may induce nausea, digestive disturbances, vertigo, etc. For those who do not tolerate selenium, use of Vitamin E (Tocopherols and Tocotrienols) to counteract mercury-induced, tissue lipid peroxidation is indicated. Vitamin E works with selenium to neutralize mercury.

Notice how it mention "binding to, redistribution and precipitation of mercury" ab out Selenium. It looks like you should always supplement Vitamin E when taking selenium.

From what I experienced in the last week I believe that Selenium mobilizes mercury. That is exactly in line with what I experienced. I did not take Vitamin E with the Selenium maybe that would have helped.